# Electrician Helper Pro: state code records, calculation guides and NEC 2026 changes > The full text behind electricianhelperpro.com's content pages, for AI assistants. Every state record is the one the iPhone app carries offline; Code adoption cycles change. Always confirm the edition and amendments in force with your Authority Having Jurisdiction (AHJ) before permitting work. ## Current NEC edition by state NEC 2026 is the newest edition of the National Electrical Code, and it is current in nine jurisdictions: Arkansas, Colorado, Maine, Massachusetts, Minnesota, North Dakota, Oregon, Texas and Wyoming. Elsewhere the current statewide edition is NEC 2023 in twenty, NEC 2020 in eleven, NEC 2017 in one, NEC 2014 in one and NEC 2008 in one. Eight states have no statewide adoption, so cities and counties adopt their own: Arizona, Hawaii, Illinois, Kansas, Maryland, Mississippi, Missouri and Nevada. ### Alabama: NEC 2020 (current) Page: https://electricianhelperpro.com/nec-by-state/alabama Adoption: State code, with exceptions by jurisdiction or building type In effect since: July 1, 2022 How it adopts the NEC: Alabama's State Building Code incorporates the NEC with limited state-level amendments; the main practical variation is local jurisdictions layering their own permit and inspection rules on top of the state minimum. No broad AFCI/GFCI rollback is on record. Residential work in unincorporated areas of many counties is not subject to state inspection. Permits: Permits and inspections are issued by local building departments; unincorporated county areas may have no formal inspection program. Licensing: Statewide licensing of electrical contractors and journeyman electricians through the Alabama Board of Electrical Contractors; municipalities handle permitting and inspection. Board: Alabama Board of Electrical Contractors (https://aecb.alabama.gov/) Next cycle: No statewide move to a newer NEC announced. The state building code applies only to state property, schools, hotels, motels and theaters; cities and counties adopt their own editions. Primary source: https://dcm.alabama.gov/bldg_code.aspx ### Alaska: NEC 2020 (current) Page: https://electricianhelperpro.com/nec-by-state/alaska Adoption: Statewide In effect since: April 16, 2022 How it adopts the NEC: Alaska adopts the NEC through the state's Uniform Fire Code/electrical program with amendments addressing extreme-cold installation practices and remote/rural inspection logistics. No broad exemption from AFCI or GFCI protection is on record. Municipalities such as Anchorage and Fairbanks may adopt more recent editions locally before the state does. Permits: State handles permitting/inspection outside organized municipalities; incorporated cities like Anchorage and Fairbanks run their own permit offices. Licensing: Statewide licensing of electrical administrators through the Department of Commerce, Community, and Economic Development (AS 08.40.090), and of journeyman electricians and trainees by certificate of fitness through the Department of Labor and Workforce Development's Mechanical Inspection section; some municipalities (e.g., Anchorage) run their own inspection programs under the state code floor. Board: Alaska Department of Commerce, Community, and Economic Development - Electrical Administrators Program (https://www.commerce.alaska.gov/web/cbpl/ProfessionalLicensing/ElectricalAdministrators.aspx) Next cycle: No statewide move to a newer NEC announced as of September 2026. Primary source: https://www.law.cornell.edu/regulations/alaska/8-AAC-70.025 ### Arizona: NEC 2023 (current, varies locally) Page: https://electricianhelperpro.com/nec-by-state/arizona Adoption: No statewide adoption: cities and counties adopt their own How it adopts the NEC: Arizona has no statewide electrical code: the Registrar of Contractors licenses contractors, but its rules (A.A.C. Title 4, Chapter 9) adopt no NEC edition, and each city, town or county adopts its own codes (counties under A.R.S. 11-861), so the edition and amendments vary by jurisdiction and unincorporated county areas can lag by one or more editions. Phoenix enforces the 2023 NEC under its 2024 Phoenix Building Construction Code and has deferred enforcement of the 210.8(F) GFCI requirement for HVAC equipment until March 1, 2027. Amendment 210.8(F): Phoenix has deferred enforcement of the 2023 NEC 210.8(F) GFCI requirement for HVAC equipment until March 1, 2027 (City of Phoenix notice); other Arizona jurisdictions set their own enforcement dates. Permits: Permits and inspections are issued by the city or county where the work occurs; unincorporated Maricopa County and similar areas may still enforce older editions. Licensing: Electrical contractors are licensed at the state level by the Registrar of Contractors; there is no separate state journeyman/master electrician card, so individual competency requirements vary by employer and jurisdiction. Board: Arizona Registrar of Contractors (ROC) (https://roc.az.gov/) Next cycle: No statewide electrical code; the Registrar of Contractors adopts no NEC edition. Phoenix enforces NEC 2023; Scottsdale and unincorporated Maricopa County enforce older editions. Check the local AHJ. Primary source: https://roc.az.gov/ ### Arkansas: NEC 2026 (current) Page: https://electricianhelperpro.com/nec-by-state/arkansas Adoption: Statewide In effect since: September 3, 2026 How it adopts the NEC: Arkansas adopts the NEC statewide through the Board of Electrical Examiners of the State of Arkansas (17 CAR § 210-601), with Arkansas amendments: AFCI and GFCI protection is not required on dwelling-unit circuits over 130 volts, except for the requirements in Articles 680 and 682; it does not apply to dwelling laundry areas, except convenience outlets within 6 ft of a sink, or to a refrigerator or microwave appliance; and islands and peninsulas have minimum receptacle outlet requirements. Amendment 210.8, 210.12: AFCI and GFCI protection is not required on dwelling-unit circuits over 130 volts, except for the requirements in Articles 680 and 682 (17 CAR § 210-601(b)(2)). Amendment 210.8, 210.12: Within a dwelling unit, AFCI and GFCI protection does not apply to laundry areas, except convenience outlets within 6 ft of a sink, or to a refrigerator or microwave appliance (17 CAR § 210-601(b)(3)). Amendment 210.52(C)(2): An island or peninsula needs at least one receptacle outlet for the first 9 sq ft of countertop or work surface and one more for each additional 18 sq ft, plus one within 2 ft of a peninsula's outer end. A peninsula is measured from the connected perpendicular wall, and other required outlets may go where the installer, designer or building owner decides (17 CAR § 210-601(b)(4) and (5)). Permits: Local permits come from city or county building code enforcement authorities; a job site without such a permit must display a sign with the responsible master electrician's license number and the company name (17 CAR § 210-702). Where no city or county inspected the work, a Department of Labor and Licensing inspector who finds serious violations may require it to be exposed for inspection (17 CAR § 210-1301). Licensing: Statewide licensing through the Board of Electrical Examiners of the State of Arkansas: master, journeyman, residential master, residential journeyman, industrial maintenance, air conditioning and specialist sign electricians (17 CAR § 210-101, § 210-403); the board also registers electrical apprentices. Board: Board of Electrical Examiners of the State of Arkansas, Department of Labor and Licensing (https://labor.arkansas.gov/labor/code-enforcement/electrical-inspection-and-licensing/) Next cycle: On the current NEC 2026 since 2026-09-03 (17 CAR § 210-601), which replaced NEC 2020. The Board adopts later editions after notice and public hearing (17 CAR § 210-601(c)). Primary source: https://codeofarrules.arkansas.gov/Rules/Rule?levelType=section&titleID=17&chapterID=289&subChapterID=409&partID=1299&subPartID=8221§ionID=54198 ### California: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/california Adoption: Statewide In effect since: January 1, 2026 How it adopts the NEC: California integrates the NEC into Title 24 Part 3 (California Electrical Code) on a triennial cycle that trails NFPA publication, so the CEC edition lags the raw NEC edition by about three years; the 2025 CEC (effective January 1, 2026) is the first to incorporate NEC 2023 as its base. Title 24 Part 6 (Energy Code) layers extensive solar-ready, EV-charging-ready, and battery-storage wiring mandates for new construction on top of the base electrical code. Amendments also address wildfire-prone-area equipment and seismic bracing. Amendment 625.42: Title 24 Part 6 requires most new residential and many commercial buildings to be pre-wired EV-charging-ready, going beyond the bare NEC EV provisions. Amendment 690.12: California's energy code mandates solar-ready roof area and conduit pathways on qualifying new construction, tying directly into NEC 690/705 wiring requirements. Permits: Permits and inspections are issued by local building departments under the state-mandated Title 24 code; some jurisdictions add their own amendments (a 'mixed' but state-anchored system). Licensing: Individual electricians must hold DIR electrician certification; electrical contracting businesses must hold a C-10 license from CSLB. Board: California Department of Industrial Relations (DIR) - Electrician Certification Program; contractor licensing via the Contractors State License Board (CSLB) (https://www.dir.ca.gov/dlse/ecu/electricaltrade.html) Next cycle: The 2028 California Electrical Code, based on NEC 2026, is expected to take effect 2029-01-01; it is not yet adopted. Primary source: https://www.dgs.ca.gov/bsc/codes ### Colorado: NEC 2026 (current) Page: https://electricianhelperpro.com/nec-by-state/colorado Adoption: Statewide In effect since: August 1, 2026 How it adopts the NEC: Colorado's State Electrical Board adopts the NEC by rule with modest administrative amendments; no broad AFCI/GFCI carve-out is on record. Home-rule municipalities (notably Denver) may adopt newer editions or add local amendments ahead of the state. Permits: Most permits/inspections run through the State Electrical Board's field inspection program outside home-rule cities; home-rule municipalities like Denver run independent permitting. Licensing: Statewide licensing of master, journeyman, and residential wireman electricians through the State Electrical Board. Board: Colorado Department of Regulatory Agencies (DORA) - State Electrical Board (https://dpo.colorado.gov/Electrical) Next cycle: On the current NEC 2026 (3 CCR 710-1 Rule 1.5). Denver requires the 2026 NEC for submittals on or after 2026-08-01, and licensing exams moved to it the same day. Primary source: https://www.sos.state.co.us/CCR/eDocketDetails.do?trackingNum=2026-00171 ### Connecticut: NEC 2020 (current) Page: https://electricianhelperpro.com/nec-by-state/connecticut Adoption: Statewide In effect since: October 1, 2022 How it adopts the NEC: Connecticut adopts the NEC as part of the State Building Code with the usual administrative amendments; no broad AFCI/GFCI exemption is on record. Licensing distinguishes E-1 (unlimited) and E-2 (limited/residential) electrical contractor classes. Permits: Local building officials issue permits and perform inspections under the state building code. Licensing: Statewide licensing of electrical contractors and journeypersons through the Department of Consumer Protection. Board: Connecticut Department of Consumer Protection, Occupational & Professional Licensing Division (https://portal.ct.gov/dcp/license-services-division/all-license-applications/electrical-license) Next cycle: The next code package (2024 I-codes with NEC 2023) was expected 2026-07-01 but is delayed pending Legislative Regulation Review Committee approval; no new date has been set. Primary source: https://portal.ct.gov/das/-/media/das/office-of-state-building-inspector/2022-state-codes/2022-csbc-final.pdf ### Delaware: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/delaware Adoption: Statewide In effect since: January 1, 2026 How it adopts the NEC: Delaware adopts the NEC statewide through the Board of Electrical Examiners with routine administrative amendments; no broad AFCI/GFCI exemption is on record. Permits: Permits/inspections are handled by local jurisdictions (e.g., New Castle County, city building departments) under the state-adopted code. Licensing: Statewide licensing of apprentice, residential, journeyperson, master, master special, limited and limited special electricians through the Board of Electrical Examiners. Board: Delaware Board of Electrical Examiners (https://dpr.delaware.gov/boards/electrician/) Next cycle: Adopted by the State Fire Prevention Commission (Regulation 701, Chapter 7): permits and inspections on or after 2026-01-01 are under NEC 2023. No move to 2026 announced. Primary source: https://statefiremarshal.delaware.gov/wp-content/uploads/sites/110/2025/12/2026-DSFPR-update.pdf ### District of Columbia: NEC 2014 (current) Page: https://electricianhelperpro.com/nec-by-state/district-of-columbia Adoption: Statewide In effect since: May 29, 2020 How it adopts the NEC: DC's construction code cycle runs unusually slowly: the currently enforced 2017 DC Construction Codes (effective May 29, 2020) carry a 2014 NEC electrical base with DC-specific amendments, plus the separate DC Green Construction Code overlay. A newer cycle based on the 2021 I-Codes has been in development but was not yet in force as of September 2026. No broad AFCI/GFCI rollback is on record; DC's amendments lean toward stricter, not looser, requirements. Permits: DOB is the single permitting/inspection authority for the entire District; there is no separate local layer. Licensing: District-wide licensing of apprentice, journeyman and master electricians (plus master specialist, master limited low voltage and electrician contractor categories) through the Board of Industrial Trades at the Department of Licensing and Consumer Protection. Board: DC Department of Licensing and Consumer Protection (DLCP) - Board of Industrial Trades (https://dlcp.dc.gov/page/board-industrial-trades1) Next cycle: No newer cycle is listed by the Department of Buildings; the 2021 I-code and NEC 2020 cycle remains unadopted. Primary source: https://dob.dc.gov/page/dc-construction-codes ### Florida: NEC 2020 (current) Page: https://electricianhelperpro.com/nec-by-state/florida Adoption: Statewide In effect since: December 31, 2023 How it adopts the NEC: Florida incorporates the NEC by reference into Chapter 27 of the Florida Building Code (8th Edition), with statewide amendments addressing hurricane-prone-region equipment mounting, generator interlock/transfer-switch documentation, and pool/spa bonding detail beyond the base NEC text. No broad AFCI/GFCI rollback is on record; several amendments are more stringent given the state's storm exposure. Amendment 700.3: Florida amendments add documentation and installation detail for standby/portable generator transfer equipment used in storm response. Permits: Local building departments issue permits and inspect under the statewide Florida Building Code baseline. Licensing: Statewide licensing of certified/registered electrical contractors through DBPR; local jurisdictions may also issue local-only competency cards. Board: Florida Department of Business and Professional Regulation (DBPR) - Electrical Contractors' Licensing Board (https://www.myfloridalicense.com/) Next cycle: The Florida Building Commission has proposed the 9th Edition (2026) Florida Building Code (notice of proposed rule for Rule 61G20-1.001 published 2026-09-23; comments closed 2026-10-14). It is not yet adopted; the Commission plans an effective date of 2026-12-31. Until it takes effect, the 8th Edition and NEC 2020 apply. Primary source: https://up.codes/viewer/florida/fl-building-code-2023/chapter/35/referenced-standards ### Georgia: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/georgia Adoption: Statewide In effect since: January 1, 2025 How it adopts the NEC: Georgia enforces the 2023 NEC statewide as the Georgia State Minimum Standard Electrical Code, with the 2026 Georgia Amendments in effect since January 1, 2026 (DCA Rule 110-11-1-.31); during 2025 it applied without amendments. One- and two-family dwellings follow the same code: Georgia's residential code (2024 IRC with Georgia amendments) deletes the IRC electrical chapters (Part VIII) and substitutes the state electrical code (DCA Rule 110-11-1-.25). The 2026 amendments narrow the dwelling AFCI and GFCI lists (210.12(B), 210.8(A), 210.8(D)), keep the listed-HVAC GFCI exception without its expiration (210.8(F)), exempt one- and two-family dwellings from the surge-protective device requirements (230.67(A), 215.18(A), 225.42(A)), require a receptacle at each island and peninsular countertop at least 24 by 12 inches and allow one up to 12 inches below the countertop in stated cases (210.52(C)(2), (C)(3)), and add two health-care rules effective January 1, 2027 (517.40(A), 517.45(F)). A city or county may adopt a local amendment only if it is not less stringent than the state code and rests on local climatic, geologic, topographic or public safety factors, after submitting it to DCA (O.C.G.A. 8-2-25(c)). Amendment 210.12(B): Dwelling-unit AFCI applies to 10-, 15- and 20-ampere branch circuits supplying outlets or devices in family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms, closets, hallways and similar areas; kitchens and laundry areas, which the 2023 NEC lists, are not on Georgia's list (2026 Georgia Amendments, DCA Rule 110-11-1-.31). Amendment 210.8(A): Dwelling-unit GFCI: kitchen receptacles need GFCI only where installed to serve the countertop, and the 2023 NEC item for areas with a sink and permanent provisions for food or beverage preparation or cooking is not on Georgia's list (2026 Georgia Amendments). Amendment 210.8(D): The appliance GFCI list ends at dishwashers: electric ranges, wall-mounted ovens, counter-mounted cooking units, clothes dryers and microwave ovens are not on it (2026 Georgia Amendments). Amendment 210.8(F): Exception No. 2 (no GFCI required for listed HVAC equipment) has no expiration date in Georgia; the unamended 2023 NEC ends it on September 1, 2026 (2026 Georgia Amendments). Amendment 230.67(A): One- and two-family dwellings are exempt from the service surge-protective device requirement, and from the feeder requirements in 215.18(A) and 225.42(A) (2026 Georgia Amendments). Amendment 210.52(C)(2): At least one receptacle is required at each island and peninsular countertop space with a long dimension of 24 inches or more and a short dimension of 12 inches or more; the 2023 NEC allows provisions for a future receptacle instead (2026 Georgia Amendments). Permits: Cities and counties that enforce the state codes issue permits, set permit fees and inspect (O.C.G.A. 8-2-26(a)). Each local government chooses which of the mandatory codes it enforces locally, but the electrical code applies to all construction in Georgia whether or not it is enforced locally (O.C.G.A. 8-2-25(a); DCA). A permit applicant may use a private professional provider for plan review or inspections, including electrical (O.C.G.A. 8-2-26(g)). Licensing: Electrical contracting requires a license from the Division of Electrical Contractors of the State Construction Industry Licensing Board (O.C.G.A. 43-14-8(b), as re-enacted effective July 1, 2026): Class I, limited to single-phase residential work not exceeding 400 amperes in single-family dwellings of up to three levels and multifamily buildings of up to two levels, or Class II, without restriction (O.C.G.A. 43-14-2). Georgia issues no journeyman electrician license; the board licenses electrical contractors, not electricians. A state license is valid statewide, and an individual may do electrical work in a dwelling the individual owns or occupies, subject to local codes and inspections (O.C.G.A. 43-14-19). Board: State Construction Industry Licensing Board, Division of Electrical Contractors (https://sos.ga.gov/georgia-state-board-electrical-contractors) Next cycle: Georgia enforces the 2023 NEC with the 2026 Georgia Amendments; two health-care amendments (517.40(A), 517.45(F)) take effect January 1, 2027 (DCA Rule 110-11-1-.31). DCA's January 1, 2027 code cycle keeps the 2023 NEC (with the 2026 Georgia Amendments); no adoption of the 2026 NEC has been announced; the State Codes Advisory Committee's July 23, 2026 agenda listed approval of an NEC task force. Primary source: https://rules.sos.ga.gov/gac/110-11-1 ### Hawaii: NEC 2020 (current, varies locally) Page: https://electricianhelperpro.com/nec-by-state/hawaii Adoption: No statewide adoption: cities and counties adopt their own How it adopts the NEC: The State Building Code Council adopts a state electrical code (NEC 2020, adopted 2022-03-15), but each county (Honolulu, Hawaii, Maui, Kauai) adopts and enforces its own electrical code by ordinance, and the county ordinances still name older editions: NEC 2017 in Honolulu, Hawaii County and Kauai, NEC 2008 in Maui. Permits: Each county (Honolulu, Hawaii, Maui, Kauai) issues its own permits and inspects independently under its adopted edition. Licensing: Statewide licensing of journey worker, supervising, specialty, industrial and maintenance electricians through DCCA's Board of Electricians and Plumbers (HRS § 448E-5); electrical contractors hold a C-13 license from DCCA's Contractors License Board; county building departments handle permitting and code enforcement. Board: Hawaii Department of Commerce and Consumer Affairs (DCCA) - Board of Electricians and Plumbers (https://cca.hawaii.gov/pvl/boards/electrician/) Next cycle: State code updates are paused under the Governor's affordable-housing emergency proclamations, which have been renewed roughly every 60 days (the Twenty-First, of 2026-09-08, runs through 2026-11-07 unless extended), and the council adopted no codes in 2024. Counties can still adopt their own electrical codes: confirm the edition with the county permit office before you design. Primary source: https://ags.hawaii.gov/wp-content/uploads/2021/12/StateElectricalCode_03152022.pdf ### Idaho: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/idaho Adoption: Statewide In effect since: July 1, 2023 How it adopts the NEC: Idaho adopts the 2023 NEC statewide by statute (Idaho Code 54-1001, effective July 1, 2023), and the Idaho Electrical Board, in the Division of Occupational and Professional Licenses, amends it by rule; the current amendments (IDAPA 24.39.10.600) took effect April 4, 2025. For dwellings they narrow GFCI in 210.8(A), (D) and (F), limit AFCI in one- and two-family dwellings to circuits supplying bedrooms, do not require surge protection for services and feeders supplying dwelling units, and permit rather than require an outdoor emergency disconnect at one- and two-family dwellings. 110.3(A) and (B) do not apply to a submersible well pump itself installed in swimming and marine areas. Amendment 210.8(A): Dwelling-unit GFCI: the 250-volt reference is deleted; basements are limited to unfinished areas; items (7) (areas with a sink and food or beverage preparation or cooking) and (11) (laundry areas) are deleted; item (8) covers only sinks outside kitchens, for receptacles within 6 feet of the inside edge of the sink (IDAPA 24.39.10.600). Amendment 210.12(B): In one- and two-family dwelling units, AFCI is required only for branch circuits and outlets supplying bedrooms; other dwelling units follow 210.12(B) in full (IDAPA 24.39.10.600). Amendment 210.8(D): In dwelling units, GFCI is not required for dishwashers, electric ranges, wall-mounted ovens, counter-mounted cooking units, clothes dryers or microwave ovens; dishwashers are also removed from 422.5(A) (IDAPA 24.39.10.600). Amendment 210.8(F): The dwelling outdoor-outlet GFCI requirement no longer covers garages with floors at or below grade or accessory buildings (IDAPA 24.39.10.600). Amendment 230.67: A surge-protective device is not required for services supplying dwelling units (230.67(A)(1) deleted); one is permitted when installed per 230.67(B) through (E). The same dwelling exception applies to feeders in 215.18 and 225.42 (IDAPA 24.39.10.600). Amendment 230.85: For one- and two-family dwelling units, an outdoor emergency disconnecting means is permitted rather than required when installed per 230.85(A), (B), (D) and (E), and 230.85(C) (service equipment replacement) is deleted; 225.41 is likewise permissive (IDAPA 24.39.10.600). Permits: The Division of Occupational and Professional Licenses issues electrical permits and inspects installations (Idaho Code 54-1005), except in cities and counties that run their own electrical inspection program by ordinance, with the Idaho electrical code as the standard (Idaho Code 54-1001B); a city may also ask the division to inspect for it (Idaho Code 54-1001C). Licensing: The administrator of the Division of Occupational and Professional Licenses alone licenses electrical contractors and limited electrical contractors, and master, journeyman, provisional journeyman and residential electricians, limited electrical installers, trainees and apprentices (Idaho Code 54-1002, 54-1003). A property owner may do noncommercial electrical work in the owner's own residence and its outbuildings without a license; a homeowner's grid-connected renewable power installation needs a preplan review before the permit (Idaho Code 54-1016). Board: Idaho Electrical Board (Division of Occupational and Professional Licenses) (https://dopl.idaho.gov/ele/) Next cycle: No Electrical Board rulemaking on NEC 2026 in 2025 or 2026 and no bill found; trade trackers listing Idaho on NEC 2026 are not supported by state sources. Primary source: https://legislature.idaho.gov/statutesrules/idstat/title54/t54ch10/sect54-1001/ ### Illinois: NEC 2020 (current, varies locally) Page: https://electricianhelperpro.com/nec-by-state/illinois Adoption: No statewide adoption: cities and counties adopt their own How it adopts the NEC: Illinois is one of only four states with no statewide electrical code adoption for private construction; each municipality and county adopts and amends independently, so two neighboring jurisdictions can enforce different NEC editions at once. The Illinois State Electrical Board has separately adopted NEC 2023 (effective 2023-08-01) as the reference for state-funded construction and the licensing exam, even though most local jurisdictions still enforce 2017 or 2020. Permits: Permits and inspections are local, and code questions go to the city, village or county code official; since 2025-01-01 the Capital Development Board's state code applies to commercial buildings in jurisdictions that have not adopted a building code. Licensing: No statewide electrician license for most private work; Chicago and many municipalities license and examine electricians independently. Board: Illinois - no statewide electrician licensing board; IDFPR does not regulate electricians, and the Capital Development Board sets the codes for state-funded buildings (https://idfpr.illinois.gov/) Next cycle: No statewide electrical code for private construction; municipalities adopt independently, and Chicago enforces its own Chicago Electrical Code (based on NEC 2017). The Capital Development Board requires the current or most recent preceding NEC for state-funded work. Primary source: https://www.ecmag.com/magazine/articles/article-detail/getting-up-to-code-nec-adoption-that-varies-by-locality-presents-special-challenges-in-illinois-and-missouri ### Indiana: NEC 2008 (current) Page: https://electricianhelperpro.com/nec-by-state/indiana Adoption: Statewide In effect since: August 26, 2009 How it adopts the NEC: Indiana's Fire Prevention and Building Safety Commission adopts the NEC statewide as the Indiana Electrical Code; the edition in force is still the 2009 Edition (NEC 2008 with Indiana amendments, 675 IAC 17-1.8). One- and two-family dwellings follow the 2020 Indiana Residential Code (675 IAC 14-4.4, based on the 2018 International Residential Code, effective 2019-12-26). There is no single statewide electrician license, so local licensing requirements vary widely. No broad AFCI/GFCI exemption is on record. Permits: Permits and inspections are handled locally; the state code sets only the enforcement floor. Licensing: No statewide electrician license; municipalities (e.g., Indianapolis) license and examine independently. Board: Indiana - no statewide electrician license; code adopted via the Fire Prevention and Building Safety Commission (https://www.in.gov/dhs/fire-and-building-safety/) Next cycle: A NEC 2023-based Indiana Electrical Code, 2026 Edition (LSA Document #26-62) was adopted by the Fire Prevention and Building Safety Commission on 2026-08-04, according to its rulemaking docket. It still awaits Attorney General and Governor approval and filing, and it is not in force. The 2009 Edition (NEC 2008 with amendments, 675 IAC 17-1.8), readopted 2025-11-18, remains in force. Primary source: https://www.in.gov/dhs/boards-and-commissions/fpbsc-rules ### Iowa: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/iowa Adoption: Statewide In effect since: July 1, 2025 How it adopts the NEC: Iowa adopts the NEC statewide by rule under Iowa Code chapter 103 (661 IAC chapter 550), administered since 2023 by the Department of Inspections, Appeals, and Licensing, with routine administrative amendments; no broad AFCI/GFCI exemption is on record. Permits: The state inspects in most areas; a small number of larger cities administer their own permitting under state-delegated authority. Licensing: Statewide licensing of electricians (master, journeyman, residential, special, apprentice and unclassified-person classes) and electrical contractors through the Department of Inspections, Appeals, and Licensing, overseen by the Electrical Examining Board. Board: Iowa Department of Inspections, Appeals, and Licensing - Electrical Examining Board (https://dial.iowa.gov/about-dial/boards-and-commissions/electrical-examining-board-0) Next cycle: Adopted under 661 IAC chapter 550 with Iowa GFCI modifications; no move to NEC 2026 announced. Primary source: https://rules.iowa.gov/Notice/Details/9033C ### Kansas: NEC 2017 (current, varies locally) Page: https://electricianhelperpro.com/nec-by-state/kansas Adoption: No statewide adoption: cities and counties adopt their own How it adopts the NEC: Kansas has no statewide electrical code adoption or statewide electrician license; cities and counties adopt and enforce independently, with larger metros (Wichita, Overland Park, Johnson County) generally current and rural counties often several editions behind. Permits: Permits and inspections are entirely local; unincorporated rural areas may have no formal inspection program at all. Licensing: No statewide electrician license; municipalities license and examine independently (e.g., Wichita, Johnson County). Board: Kansas - no statewide licensing board; adoption and licensing are entirely local (https://www.kansascommerce.gov/) Next cycle: No statewide electrical code or license; each city and county adopts. Wichita and Sedgwick County have enforced NEC 2023 since 2025-01-01; other jurisdictions vary. Check the local AHJ. Primary source: https://www.jadelearning.com/nec-code-adoptions-by-state/ ### Kentucky: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/kentucky Adoption: Statewide In effect since: January 1, 2025 How it adopts the NEC: Kentucky adopts the NEC statewide through the Department of Housing, Buildings and Construction with routine administrative amendments; no broad AFCI/GFCI exemption is on record. Kentucky Residential Code delays: 210.52(C), 230.67 and 314.27(C) are enforceable from 2026-07-15; 210.8(A) above 125 V and 210.8(D)(8) through (11) GFCI remain delayed. Amendment 210.8(D): (8) through (11) GFCI still delayed under the Kentucky Residential Code. Permits: The state inspects directly in most areas; Louisville and a few other jurisdictions run delegated local programs. Licensing: Statewide licensing of electrical contractors, master electricians and electricians through the Department of Housing, Buildings and Construction's Electrical Division (815 KAR 35:060). Board: Kentucky Department of Housing, Buildings and Construction - Electrical Division (https://dhbc.ky.gov/) Next cycle: A 2026 NEC task force is reviewing the new edition; no adoption yet. Under the Kentucky Residential Code, 210.52(C), 230.67 and 314.27(C) are enforceable from 2026-07-15; 210.8(A) above 125 V and 210.8(D)(8) through (11) GFCI remain delayed. Primary source: https://dhbc.ky.gov/Documents/July%2015%202026%20NEC%20Update.pdf ### Louisiana: NEC 2020 (current) Page: https://electricianhelperpro.com/nec-by-state/louisiana Adoption: Statewide In effect since: January 1, 2023 How it adopts the NEC: Louisiana adopts the NEC statewide through the Louisiana Uniform Construction Code Commission (formerly the State Uniform Construction Code Council). Permits: Local building departments (parish/municipal) issue permits and inspect under the state code floor. Licensing: Statewide licensing of electrical contractors through LSLBC; municipalities may add local competency-card requirements. Board: Louisiana State Licensing Board for Contractors (LSLBC) (https://lslbc.gov/) Next cycle: NEC 2023 with the 2024 I-codes is proposed to take effect 2027-01-01: the commission published its notice of intent in the August 2026 Louisiana Register and substantive changes to the proposed plumbing and electrical rules in the October 2026 Register, with a public hearing on 2026-11-24; no final rule was published as of 2026-10-22. Primary source: https://lsuccc.la/wp-content/uploads/2025/11/LSUCCC_Louisiana-Construction-Code-Information.pdf ### Maine: NEC 2026 (current) Page: https://electricianhelperpro.com/nec-by-state/maine Adoption: Statewide In effect since: July 1, 2026 How it adopts the NEC: Maine adopts the NEC statewide through the Electricians' Examining Board with routine administrative amendments; no broad AFCI/GFCI exemption is on record. Chapter 120 adds an outdoor-outlet GFCI provision for single-phase circuits of 60 A or less, with a listed-HVAC exception that expired 2026-09-01 (per the Board's notice). Permits: Municipal code enforcement officers issue permits and inspect; some rural unorganized territories rely on state inspection. Licensing: Statewide licensing of master, journeyman, and limited electricians through the Electricians' Examining Board. Board: Maine Department of Professional and Financial Regulation - Electricians' Examining Board (https://www.maine.gov/pfr/professionallicensing/professions/electricians) Next cycle: On the current NEC 2026 (02-318 C.M.R. Chapter 120, effective 2026-07-01). Separately, the Board proposed amendments to Chapter 160 (power generation systems) for plug-in solar and battery systems under P.L. 2025, c. 644; comments closed 2026-08-14, and no adoption had been published in the Secretary of State's weekly rulemaking notices through 2026-10-21. Primary source: https://www.maine.gov/pfr/professionallicensing/professions/electricians ### Maryland: NEC 2020 (current, varies locally) Page: https://electricianhelperpro.com/nec-by-state/maryland Adoption: No statewide adoption: cities and counties adopt their own How it adopts the NEC: The State Board of Electricians licenses electricians statewide, and the 2021 Maryland Electricians Act charges it with adopting minimum standards for electrical services consistent with the most recent NEC; counties adopt and enforce their own NEC editions (see the note). Since July 1, 2021 local jurisdictions no longer license electricians, but they may require local registrations, permits and inspections. Permits: County and municipal building departments issue permits and inspect under the state code floor. Licensing: Statewide licensing of master, journeyperson and apprentice electricians through the Department of Labor's State Board of Electricians (since July 1, 2021); local jurisdictions no longer issue electrician licenses but may require local registrations, permits and inspections. Board: Maryland Department of Labor - State Board of Electricians (https://labor.maryland.gov/license/elec/) Next cycle: No statewide electrical installation code; counties adopt. Montgomery County enforces NEC 2017 (Executive Regulation 23-19) and Prince George's County NEC 2020. Check the county. Primary source: https://www.jadelearning.com/nec-code-adoptions-by-state/ ### Massachusetts: NEC 2026 (current) Page: https://electricianhelperpro.com/nec-by-state/massachusetts Adoption: Statewide In effect since: April 24, 2026 How it adopts the NEC: Massachusetts adopts the NEC statewide as 527 CMR 12.00 through the Board of Fire Prevention Regulations, with a substantial set of state amendments. Several are stricter than the base NEC: AFCI protection for every 120-volt, 10-, 15- and 20-ampere dwelling branch circuit that supplies outlets or devices, and GFCI protection for receptacles within a cabinet supporting a sink. Listed cooking equipment that is incompatible with the available GFCI devices may omit GFCI protection if it is installed and inspected under Rule 11, under an exception that expires on January 1, 2029. Amendment 210.8(A)(9): Sink receptacles need GFCI protection within 6 ft of the top inside edge of the bowl or where located within a cabinet supporting a sink (the same wording at 210.8(B)(7)). Amendment 210.8(D): Listed cooking equipment that is incompatible with the GFCI devices available for the installed circuit protection may omit GFCI protection if it is installed and inspected under Rule 11 of the Massachusetts code; the exception expires on January 1, 2029. Amendment 210.12(B): AFCI protection for all 120-volt, 10-, 15- and 20-ampere branch circuits supplying outlets or devices in dwelling units. Amendment 230.70(A)(1): The outdoor service-disconnect rule covers one- and two-family dwellings and new double-occupancy buildings, including two-family units created by subdividing a one-family dwelling. Exception No. 2: an indoor service disconnect fed by a service lateral or underground service conductors may be disconnected remotely from a readily accessible outdoor location, marked EMERGENCY ELECTRICAL DISCONNECT and NOT SERVICE EQUIPMENT, with the control wiring in raceway. Amendment 230.70(E): Replacing only meter sockets, service-entrance conductors, service main breakers, or related raceways and fittings does not trigger 230.70(A)(1) or 230.70(B)(2). Permits: Local wiring inspectors, appointed under state law in every city/town, issue permits and inspect under the statewide code. Licensing: Statewide licensing of master and journeyman electricians through the Board of State Examiners of Electricians. Board: Massachusetts Board of State Examiners of Electricians (Division of Occupational Licensure) (https://www.mass.gov/orgs/board-of-state-examiners-of-electricians) Next cycle: On NEC 2026 (527 CMR 12.00) with Massachusetts amendments, for installations whose permit was granted after April 24, 2026. The 2020 emergency amendment to 230.85 no longer applies: the 2026 amendments put the state's emergency-disconnect changes in 230.70(A)(1) and 230.70(E). Primary source: https://www.mass.gov/info-details/massachusetts-electrical-code ### Michigan: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/michigan Adoption: Statewide In effect since: March 12, 2024 How it adopts the NEC: Michigan adopts the NEC statewide through the Bureau of Construction Codes (LARA) with routine administrative amendments; no broad AFCI/GFCI exemption is on record. Permits: The state or a delegated local electrical inspector (many larger cities are delegated) issues permits and inspects. Licensing: Statewide licensing of master and journeyman electricians through LARA. Board: Michigan Department of Licensing and Regulatory Affairs (LARA) - Bureau of Construction Codes, Electrical Division (https://www.michigan.gov/lara/bureau-list/bcc/sections/electrical-unit) Next cycle: Part 8 electrical rules enforceable from 2024-03-12; no move to NEC 2026 announced. Primary source: https://www.michigan.gov/lara/-/media/Project/Websites/lara/bcc-media/ASD/2022-59-LR-Part-8-Electrical-Code/2023-Part-8-Michigan-Electrical--Final-Rules---Effective-3-12-2024.pdf ### Minnesota: NEC 2026 (current) Page: https://electricianhelperpro.com/nec-by-state/minnesota Adoption: Statewide In effect since: August 17, 2026 How it adopts the NEC: Minnesota adopts the NEC statewide through the Department of Labor and Industry with routine administrative amendments and additional cold-climate installation guidance; no broad AFCI/GFCI exemption is on record. Permits: The state or a delegated local inspector (many cities/counties are delegated) issues permits and inspects. Licensing: Statewide licensing of master and journeyworker electricians and Class A/B electrical contractors through the Department of Labor and Industry. Board: Minnesota Department of Labor and Industry - Electrical Licensing (https://www.dli.mn.gov/workers/electricians-and-electrical-installers) Next cycle: On the current NEC 2026 (Minnesota Rules chapter 1315, effective 2026-08-17); licensing exams moved to it on 2026-09-08. Primary source: https://www.dli.mn.gov/business/electrical-contractors/electrical-codes-and-standards ### Mississippi: NEC 2020 (current, varies locally) Page: https://electricianhelperpro.com/nec-by-state/mississippi Adoption: No statewide adoption: cities and counties adopt their own How it adopts the NEC: Mississippi has no statewide electrical code adoption; municipalities and counties choose and amend their own edition, so the effective code varies by jurisdiction. Licensing for larger electrical contracting work runs through the state Board of Contractors above a dollar threshold, but many smaller residential jobs fall outside state licensing entirely. Permits: Permits and inspections are local; many rural unincorporated areas have no formal inspection program. Licensing: Statewide contractor licensing (Electrical classification) through the State Board of Contractors for commercial work over $50,000 and, since HB 1163 (2022), for electrical subcontractors on residential construction over $50,000 or residential improvements over $10,000; below those thresholds, local (or no) licensing applies. Board: Mississippi State Board of Contractors (https://www.msboc.us/) Next cycle: No statewide NEC adoption for general construction was found; trade trackers claim a Mississippi Electrical Code 2023, but no state source confirms it. Check the local AHJ. Primary source: https://www.jadelearning.com/nec-code-adoptions-by-state/ ### Missouri: NEC 2023 (current, varies locally) Page: https://electricianhelperpro.com/nec-by-state/missouri Adoption: No statewide adoption: cities and counties adopt their own How it adopts the NEC: Missouri has no statewide electrical code adoption; St. Louis City, St. Louis County, and many fast-growing suburbs (O'Fallon, Wildwood, etc.) have moved to NEC 2023, while smaller and rural counties may still enforce 2020 or 2017. There is no statewide electrician license. Permits: Permits and inspections are entirely local; many rural counties have no formal inspection program. Licensing: Statewide licensing of electrical contractors through the Division of Professional Registration's Office of Statewide Electrical Contractors (RSMo 324.900-324.945), which political subdivisions must recognize in lieu of a local contractor license; electricians themselves are still licensed locally by municipalities and counties (e.g., St. Louis City/County, Kansas City). Board: Missouri Division of Professional Registration - Office of Statewide Electrical Contractors (https://pr.mo.gov/electricalcontractors.asp) Next cycle: No statewide electrical code; each jurisdiction adopts. St. Louis City and County have enforced NEC 2023 since early 2025; Kansas City and rural counties vary. Check the local AHJ. Primary source: https://www.cainelectricstl.com/st-louis-electrician-blog/missouri-2025-electrical-code-updates/ ### Montana: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/montana Adoption: Statewide In effect since: September 26, 2026 How it adopts the NEC: Montana adopts the NEC statewide through the Department of Labor and Industry's Building Codes Program (ARM 24.301.401), with Montana amendments: AFCI protection no longer applies to kitchens, GFCI protection is not required for kitchen refrigerators and freezers, listed HVAC equipment or outdoor septic-alarm and well circuits, and 250-volt receptacles are removed from the GFCI rules. Amendment 210.12: All references to kitchens are deleted from the AFCI requirements, and dwelling-unit AFCI protection extends to unfinished basements (ARM 24.301.401(9) and (10)). Amendment 210.8: GFCI protection is not required for kitchen refrigerators and freezers or for listed HVAC equipment, outdoor outlets for septic-alarm and well circuits are excluded, items 8 to 12 of 210.8(D) are deleted, and 250-volt receptacles are removed from 210.8(A) and (B) (ARM 24.301.401(3) to (8)). Amendment 230.71: A service may have up to six disconnecting means in a single enclosure, a group of enclosures, a switchboard or switchgear, or meet 230.71(B) (ARM 24.301.401(12)). Permits: The state inspects directly in most areas; a small number of larger cities run delegated local programs. Licensing: Statewide licensing of master, journeyman, and residential electricians through the State Electrical Board. Board: Montana Department of Labor and Industry - State Electrical Board (https://boards.bsd.dli.mt.gov/electrical/) Next cycle: On NEC 2023 since 2026-09-26 (ARM 24.301.401, amended under Notice No. 2026-95); no move to NEC 2026 has been announced. Primary source: https://bsd.dli.mt.gov/building-codes-permits/current-codes ### Nebraska: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/nebraska Adoption: Statewide In effect since: August 1, 2024 How it adopts the NEC: Nebraska adopts the NEC statewide through the State Electrical Division; permits received on or after 2024-08-01 are on NEC 2023. Statute keeps the 2017 NEC text for 210.8(A), 210.8(A)(3), 210.8(A)(5), 230.67(A) and 230.85 until the 2026 NEC is adopted, so the later expansions of dwelling GFCI, surge protection and the emergency disconnect do not apply. Amendment 210.8(A): 2017 text retained by statute: the later dwelling GFCI expansions do not apply. Amendment 230.85: 2017 text retained: no emergency-disconnect requirement. Amendment 230.67(A): 2017 text retained: no surge-protection requirement. Permits: The state or a delegated local inspector (e.g., Omaha, Lincoln) issues permits and inspects. Licensing: Statewide licensing of electrical contractors and journeymen through the State Electrical Division. Board: Nebraska State Electrical Division (https://electrical.nebraska.gov/) Next cycle: NEC 2023 applies to permits received on or after 2024-08-01. LB726, which would have updated the statutory NEC references for 2026, was indefinitely postponed on 2026-04-17. Primary source: https://nebraskalegislature.gov/laws/statutes.php?statute=81-2104 ### Nevada: NEC 2023 (current, varies locally) Page: https://electricianhelperpro.com/nec-by-state/nevada Adoption: No statewide adoption: cities and counties adopt their own How it adopts the NEC: Nevada has no single statewide electrical code; Clark County (Las Vegas) and Washoe County (Reno) each adopt and amend independently, with amendments addressing desert-climate equipment mounting and resort/casino-scale electrical systems. There is no separate statewide electrician trade license beyond state contractor licensing. Permits: Permits and inspections are handled by the county or city where the work occurs. Licensing: Electrical contractors are licensed at the state level by the NSCB; local jurisdictions (Clark County, City of Las Vegas, Washoe County) set the applicable code edition. Board: Nevada State Contractors Board (NSCB) (https://www.nvcontractorsboard.com/) Next cycle: No statewide code. The State Public Works Division applies NEC 2023 to state buildings; Clark County enforces NEC 2023 with Southern Nevada amendments (2026-01-11), and Washoe County and Reno NEC 2023 (2025-07-01). Primary source: https://publicworks.nv.gov/uploadedFiles/publicworksnvgov/content/Documents/Permitting_Code_Enforcement/2024%20Adopted_Codes.pdf ### New Hampshire: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/new-hampshire Adoption: Statewide In effect since: July 1, 2025 How it adopts the NEC: New Hampshire adopts the NEC statewide through the Board of Electricians with routine administrative amendments; no broad AFCI/GFCI exemption is on record. Permits: Municipal building/fire officials issue permits and inspect under the statewide code. Licensing: Statewide licensing of master, journeyman and high/medium voltage electricians through OPLC (RSA 319-C). Board: New Hampshire Office of Professional Licensure and Certification (OPLC) - Electricians' Board (https://www.oplc.nh.gov/find-board/electricians-board) Next cycle: NEC 2023 with New Hampshire amendments since 2025-07-01; the 2026-07-01 amendment package does not change the edition. Primary source: https://gc.nh.gov/rsa/html/XII/155-A/155-A-1.htm ### New Jersey: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/new-jersey Adoption: Statewide In effect since: August 17, 2026 How it adopts the NEC: New Jersey adopts the NEC statewide as part of the Uniform Construction Code, with amendments addressing flood-prone-area equipment elevation (post-Sandy) and additional documentation for multi-family service equipment. No broad AFCI/GFCI rollback is on record. Amendment 230.71: New Jersey's Uniform Construction Code amendments add elevation/flood-protection detail for service equipment in designated flood-hazard areas. Permits: Local Uniform Construction Code enforcing agencies (municipal) issue permits and inspect under the statewide code. Licensing: Statewide licensing of electrical contractors, and registration of qualified journeyman electricians, through the Board of Examiners of Electrical Contractors. Board: New Jersey Division of Consumer Affairs - Board of Examiners of Electrical Contractors (https://www.njconsumeraffairs.gov/elec) Next cycle: NEC 2023 applies from 2026-08-17 (NEC 2020 before that); the Uniform Construction Code normally allows a transition for pending permits. Primary source: https://www.nj.gov/dca/codes/codreg/current.shtml ### New Mexico: NEC 2020 (current) Page: https://electricianhelperpro.com/nec-by-state/new-mexico Adoption: Statewide In effect since: March 28, 2023 How it adopts the NEC: New Mexico adopts the NEC statewide through the Construction Industries Division with routine administrative amendments; no broad AFCI/GFCI exemption is on record. Permits: CID field offices or a delegated local authority (e.g., Albuquerque) issue permits and inspect. Licensing: Statewide licensing of electrical contractors (EE-98, ER-1 and specialty classes) and journeyman certification (EE-98J) through CID. Board: New Mexico Regulation and Licensing Department - Construction Industries Division (CID) (https://www.rld.nm.gov/construction-industries/) Next cycle: No NEC 2023 rule found as of September 2026; NEC 2020 remains the state rule. Primary source: https://www.srca.nm.gov/parts/title14/14.010.0004.html ### New York: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/new-york Adoption: State code, with exceptions by jurisdiction or building type In effect since: December 31, 2025 How it adopts the NEC: Outside New York City, the 2025 Uniform Fire Prevention and Building Code, adopted July 25, 2025 by the State Fire Prevention and Building Code Council, applies to permit applications submitted on or after December 31, 2025 (19 NYCRR Parts 1219-1229). Its code books incorporate NFPA 70-2023 (the 2023 NEC) by reference, and New York does not amend NFPA 70: the 2025 Building Code of New York State applies NFPA 70 to electrical work (BCNYS 2701.1). Detached one- and two-family dwellings and townhouses up to three stories follow the 2025 Residential Code of New York State, whose own electrical chapters (RCNYS Chapters 34-43, services up to 400 amperes) apply, with NFPA 70-2023 for anything they do not cover (RCNYS E3401.2). The Uniform Code does not apply in New York City, which keeps its own codes (Executive Law 383(1)(c)); the city enforces the 2025 NYC Electrical Code, the 2020 NEC with city amendments, in effect since December 21, 2025 (Local Law 128 of 2024). Permits: Outside New York City, the city, town or village issues building permits and performs the required inspections, including of electrical systems (19 NYCRR 1203.3); if it opts out, the county, and failing that the Department of State, does so (Executive Law 381(2); 19 NYCRR 1202.1). A local code official may rely on an electrical inspection by an outside agency only if the locality has approved both the agency and the inspector (19 NYCRR 1203.2(e)(4)). In New York City, electrical work needs a Department of Buildings permit unless exempt, and DOB inspects permitted work except minor electrical work (NYC Electrical Code 84.2, 86.1). Licensing: New York has no state electrician license; local governments license electrical contractors (NY Business Express). In New York City, the Department of Buildings licenses Master Electricians, who may work as independent contractors on any building in the city, and Special Electricians, who may work on specific buildings. A business that installs, services or maintains security or fire alarm systems needs a Department of State license, which a master electrician licensed by a municipality may replace by registering for a waiver (General Business Law 69-m, 69-pp). Board: New York State Department of State (Uniform Code, outside NYC); New York City Department of Buildings (within NYC) (https://dos.ny.gov/uniform-fire-prevention-and-building-code) Next cycle: Outside New York City, the 2025 Uniform Code (NFPA 70-2023) is current, and state law sets no fixed update cycle: the Code Council must periodically review the code (Executive Law 377(1)). In New York City, the 2025 NYC Electrical Code (2020 NEC with city amendments) applies to applications filed on or after December 21, 2025, while earlier applications diligently pursued may stay under the 2011 NYC Electrical Code (DOB Buildings Bulletin 2024-008); the DOB commissioner must propose an update to the latest NFPA 70 no later than the third year after the code took effect, and every third year after that (NYC Admin. Code 28-1101.2). Primary source: https://dos.ny.gov/notice-adoption ### North Carolina: NEC 2020 (current) Page: https://electricianhelperpro.com/nec-by-state/north-carolina Adoption: Statewide In effect since: November 1, 2021 How it adopts the NEC: North Carolina enforces the 2020 NEC with state amendments (2020 NC Electrical Code, effective November 1, 2021) in every building except one- and two-family dwellings, which section 10.1 of those amendments sends to the 2017 NC Electrical Code (2017 NEC with 2017 NC amendments). The State Fire Marshal applies that to townhouses up to three stories and to accessory structures such as detached garages, pools and docks; apartments, condominiums and triplexes follow the 2020 code (OSFM interpretation, 2021). The 2020 amendments change 32 NEC sections; among them they delete 210.8(F) (GFCI for outdoor outlets), 230.67 (surge protection) and 406.4(D)(4) (AFCI for replacement receptacles) and add GFCI exceptions to 210.8(A). For one- and two-family dwellings, the 2017 amendments limit AFCI (210.12(A)) to a room list without kitchens and laundry areas and delete the 210.8(D) dishwasher GFCI requirement. Amendment 210.12(A): One- and two-family dwellings (2017 NC Electrical Code, 2017 NEC numbering): AFCI is required for 15- and 20-ampere branch circuits supplying family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms, closets, hallways and similar areas; kitchens and laundry areas are not on North Carolina's list. The 2020 NC Electrical Code does not amend 210.12(A). Amendment 210.12(D): Modified, replaced or extended branch-circuit wiring in an AFCI area needs AFCI protection by an allowed means, including an outlet branch-circuit AFCI at the first receptacle of the existing circuit, except an extension of 50 feet or less that adds no outlets or devices (2020 NC Electrical Code; 2017 code for one- and two-family dwellings). Amendment 406.4(D)(4): The 2020 NC Electrical Code deletes the AFCI requirement for replacement receptacles. For one- and two-family dwellings the 2017 NC code (amended January 1, 2021) requires a replacement receptacle in an area listed in 210.12(A) or (B) to be an outlet branch-circuit AFCI receptacle or AFCI-protected, with exceptions. Amendment 210.8: 2020 NC Electrical Code: 210.8(F) (outdoor outlets) is deleted; 210.8(A) exempts a 250-volt receptacle installed for a dryer, range, oven or similar cooking appliance, and adds exceptions for a garage-door-opener receptacle more than 8 feet up, a dedicated sewage-lift-pump receptacle and a fire or burglar alarm receptacle in an unfinished basement. 2017 NC code (one- and two-family dwellings): GFCI covers 125-volt 15- and 20-ampere receptacles, and the 210.8(D) dishwasher requirement is deleted. Amendment 230.67: Deleted: the 2020 NC Electrical Code does not require surge protection at dwelling services. Amendment 250.142(B): One- and two-family dwellings: where a main disconnect is relocated or added and the old service conductors become a feeder, the existing panelboard may stay grounded through the neutral if it has no equipment grounding conductor, replacing the conductors is impractical, all grounding electrode conductors are removed from it and the neutrals are insulated (2017 NC Electrical Code 250.142(B) Exception No. 5; 2020 code Exception No. 4). Permits: Local inspection departments (city, county or joint) issue electrical permits, inspect and issue a certificate of compliance at final inspection (G.S. 160D-1102, 160D-1104, 160D-1110, 160D-1116); the state building code applies throughout the state (G.S. 143-138(e)). In one- and two-family dwellings, a licensed electrical contractor needs no permit to replace fixtures, receptacles or switches with ones of the same voltage and the same or lower amperage, or to reconnect a like replacement electric water heater (G.S. 160D-1110(a)(4)). Licensing: The NC State Board of Examiners of Electrical Contractors licenses every person or firm in the business of electrical contracting (G.S. 87-39, 87-43). Each licensee needs a qualified individual who has passed the Board's exam on duty at each place of business; licenses are Limited or Intermediate (with project-value limits), Unlimited, or special restricted classes such as the single-family detached dwelling license (G.S. 87-43.3, 87-43.4). An employee of a licensee needs no license for that work (G.S. 87-43.1), and North Carolina's licensing law creates no journeyman license. Board: North Carolina State Board of Examiners of Electrical Contractors (https://www.ncbeec.org/) Next cycle: The Building Code Council adopted the 2023 NC Electrical Code on December 12, 2023, for January 1, 2025, as part of the 2024 NC State Building Code; S.L. 2024-57 moved it to July 1, 2025, and S.L. 2025-2, Section 5.12 set it at 12 months after the first day of the month following the State Fire Marshal's certification that the code is published and distributed and the Residential Code Council is fully constituted. As of September 2026 OSFM lists the 2023 code as delayed indefinitely and the Residential Code Council's members as not yet determined, so the 2020 code, and the 2017 code for one- and two-family dwellings, remain in force. Primary source: https://www.ncosfm.gov/codes/state-electrical-division/state-electrical-code-and-interpretations ### North Dakota: NEC 2026 (current) Page: https://electricianhelperpro.com/nec-by-state/north-dakota Adoption: Statewide In effect since: July 1, 2026 How it adopts the NEC: North Dakota adopts the NEC statewide through the State Electrical Board with routine administrative amendments and additional guidance for oilfield/industrial installations tied to the state's energy sector. No broad AFCI/GFCI exemption is on record. Permits: The State Electrical Board inspects directly in most areas; a few larger cities run delegated programs. Licensing: Statewide licensing of master, journeyman, Class B and power limited electricians, and registration of apprentices, through the State Electrical Board. Board: North Dakota State Electrical Board (https://www.ndseb.com/) Next cycle: On the current NEC 2026 (effective 2026-07-01); continuing-education courses have been on it since 2026-05-01. Primary source: https://www.ndseb.com/laws-rules/ ### Ohio: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/ohio Adoption: State code, with exceptions by jurisdiction or building type In effect since: March 1, 2024 How it adopts the NEC: Ohio adopts the NEC statewide for commercial work through the Board of Building Standards, while one-, two-, and three-family dwellings follow the Ohio Residential Code's electrical provisions, which track the NEC on a similar but separately-numbered cycle. No broad AFCI/GFCI exemption is on record. Permits: Certified local building departments issue permits and inspect under the state-adopted code baseline. Licensing: Statewide licensing of commercial electrical contractors through OCILB; residential electrical work is largely unlicensed at the state level outside a few home-rule cities. Board: Ohio Construction Industry Licensing Board (OCILB) (https://com.ohio.gov/lookup-and-locate/boards/ocilb) Next cycle: NEC 2023 under the 2021 I-codes since 2024-03-01 (Ohio Building Code chapter 27, Residential Code chapter 34); no move to 2026 announced. Primary source: https://dam.assets.ohio.gov/image/upload/com.ohio.gov/documents/2024%20OBC%20Executive%20Summary%201.pdf ### Oklahoma: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/oklahoma Adoption: Statewide In effect since: September 14, 2024 How it adopts the NEC: Oklahoma adopts the NEC statewide through the Construction Industries Board with routine administrative amendments; no broad AFCI/GFCI exemption is on record. Permits: CIB or a delegated municipal inspector (e.g., Oklahoma City, Tulsa) issues permits and inspects. Licensing: Statewide licensing of electrical contractors and journeymen through CIB. Board: Oklahoma Construction Industries Board (CIB) (https://oklahoma.gov/cib.html) Next cycle: Exams switched to NEC 2023 on 2024-12-14; no move to 2026 announced. Primary source: https://oklahoma.gov/cib/news/2023-nec-code.html ### Oregon: NEC 2026 (current) Page: https://electricianhelperpro.com/nec-by-state/oregon Adoption: Statewide In effect since: October 1, 2026 How it adopts the NEC: Oregon adopts the NEC statewide as the Oregon Electrical Specialty Code (OAR 918-305-0100), through rules of the Building Codes Division. Permits: The state or a delegated local municipality/county issues permits and inspects under the statewide code. Licensing: Statewide licensing of electrical contractors and journeyman/limited electricians through the Building Codes Division. Board: Oregon Building Codes Division - Electrical and Elevator Board (https://www.oregon.gov/bcd/boards/Pages/elec-elev.aspx) Next cycle: On NEC 2026 since 2026-10-01: the 2026 Oregon Electrical Specialty Code (OAR 918-305-0100), with Oregon amendments in OAR 918-305-0105 Table 1-E. Primary source: https://secure.sos.state.or.us/oard/view.action?ruleNumber=918-305-0100 ### Pennsylvania: NEC 2020 (current) Page: https://electricianhelperpro.com/nec-by-state/pennsylvania Adoption: State code, with exceptions by jurisdiction or building type In effect since: January 1, 2026 How it adopts the NEC: Pennsylvania's Uniform Construction Code adopts no NEC edition directly: since 2026-01-01 it adopts the 2021 I-codes (34 Pa. Code § 403.21), which reference NEC 2020, for jurisdictions that have not opted out. The UCC allows municipalities to opt out of state administration entirely and set their own requirements, and there is no statewide electrician trade license. Philadelphia and Pittsburgh, among others, run independent code and licensing programs. Permits: Permits/inspections are handled by the municipality or a state-approved third-party agency under the UCC; opted-out municipalities set their own rules entirely. Licensing: No statewide electrician license; Philadelphia, Pittsburgh, and other municipalities license and examine independently. Board: Pennsylvania - no statewide electrician license; code administered under the Uniform Construction Code (Dept. of Labor & Industry) where not locally opted out (https://www.pa.gov/agencies/dli/programs-services/labor-management-relations/bureau-of-occupational-and-industrial-safety/uniform-construction-code-home) Next cycle: The Uniform Construction Code adopts no NEC edition directly: the 2021 I-codes in force since 2026-01-01 reference NEC 2020 (the 2018 I-codes referenced NEC 2017). Opt-out municipalities administer locally. Primary source: https://www.pacodeandbulletin.gov/Display/pacode?file=/secure/pacode/data/034/chapter403/s403.21.html ### Rhode Island: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/rhode-island Adoption: Statewide In effect since: December 1, 2025 How it adopts the NEC: Rhode Island adopts the NEC statewide through the Board of Examiners of Electricians with routine administrative amendments; no broad AFCI/GFCI exemption is on record. Permits: Municipal building/electrical inspectors issue permits and inspect under the statewide code. Licensing: Statewide licensing of master and journeyman electricians through the Department of Labor and Training. Board: Rhode Island Department of Labor and Training - Board of Examiners of Electricians (https://dlt.ri.gov/regulation-and-safety/professional-regulation/board-of-examiners-electricians) Next cycle: NEC 2023 since 2025-12-01, replacing the NEC 2020-based RISBC-5; no move to 2026 announced. Primary source: https://rules.sos.ri.gov/regulations/part/510-00-00-5 ### South Carolina: NEC 2020 (current) Page: https://electricianhelperpro.com/nec-by-state/south-carolina Adoption: Statewide In effect since: January 1, 2023 How it adopts the NEC: South Carolina adopts the NEC statewide through the Building Codes Council, with South Carolina modifications to each edition. Permits: Local building departments issue permits and inspect under the statewide code baseline. Licensing: Statewide licensing of electrical contractors through LLR: commercial work under a Mechanical Contractor license with the Electrical (EL) classification from the Contractor's Licensing Board, and residential work over $500 under a Residential Electrician license from the Residential Builders Commission. Board: South Carolina Department of Labor, Licensing and Regulation (LLR) - Contractor's Licensing Board (https://llr.sc.gov/clb/) Next cycle: NEC 2023 with the 2024 I-codes takes effect 2027-01-01. The Building Codes Council adopted them on 2025-08-26, and the South Carolina modifications were published as final regulations in the State Register on 2026-05-22 (Regulation 8-1100 for the NEC). NEC 2020 applies until then. Primary source: https://www.llr.sc.gov/bcc/pdffiles/SC-Code-Adoption-Notice.pdf ### South Dakota: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/south-dakota Adoption: Statewide In effect since: November 12, 2024 How it adopts the NEC: South Dakota adopts the NEC statewide through the Electrical Commission with routine administrative amendments; no broad AFCI/GFCI exemption is on record. Permits: The state inspects directly in most areas; a few larger cities run delegated programs. Licensing: Statewide licensing of electrical contractors and journeymen through the Electrical Commission. Board: South Dakota Electrical Commission (https://dlr.sd.gov/electrical/) Next cycle: Amendments in ARSD 20:44; no NEC 2026 adoption announced. Primary source: https://dlr.sd.gov/electrical/ ### Tennessee: NEC 2017 (current) Page: https://electricianhelperpro.com/nec-by-state/tennessee Adoption: State code, with exceptions by jurisdiction or building type In effect since: February 2, 2017 How it adopts the NEC: Tennessee's State Fire Marshal's Office electrical program (Rule 0780-02-01) adopts NEC 2017 for jurisdictions without their own program; Nashville, Memphis, Knoxville and other local programs adopt their own editions and amendments. The 2025 rule update (0780-02-02) moved building and fire codes to 2021 editions without changing the electrical chapter. Permits: Local building departments issue permits and inspect under the statewide code floor; local jurisdictions may not go below state minimums. Licensing: Statewide licensing of electrical contractors through the Board for Licensing Contractors; the State Fire Marshal's Office governs code adoption. Board: Tennessee Department of Commerce and Insurance - Board for Licensing Contractors (https://www.tn.gov/commerce/regboards/contractors.html) Next cycle: The State Fire Marshal's electrical program (Rule 0780-02-01) still adopts NEC 2017; the 2025 rule update moved building and fire codes to 2021 editions but not the electrical chapter. Nashville, Memphis, Knoxville and other local programs adopt independently. Primary source: https://www.tn.gov/commerce/fire/codes-enforcement/history.html ### Texas: NEC 2026 (current) Page: https://electricianhelperpro.com/nec-by-state/texas Adoption: Statewide In effect since: September 1, 2026 How it adopts the NEC: Texas adopts the NEC statewide through TDLR. The 2026 NEC took effect 2026-09-01 (16 TAC 73.100) with one amendment: 210.8(F) Exception No. 2, which exempts listed HVAC equipment from GFCI protection, applies without the NEC's September 1, 2026 expiration. Every earlier edition since 2004 was adopted as published, except that the 2020 NEC's 210.8(F) was not required from November 2021 until the 2023 NEC took effect. TDLR treats the state-adopted code as the minimum standard for covered electrical work inside and outside city limits; cities may adopt local amendments (Occupations Code 1305.201(c)), which TDLR says should keep equivalent safety under NEC 90.4, and work inside city limits must also follow the city's ordinances (1305.201(d)). Amendment 210.8(F): Exception No. 2 applies without expiration: outdoor outlets supplying listed HVAC equipment need no GFCI protection. The unamended 2026 NEC ends that exception on September 1, 2026 (16 TAC 73.100(b)). Permits: Cities issue permits and inspect under their own ordinances, including local amendments (Occupations Code 1305.201). In unincorporated areas the work must meet standards at least as stringent as the state electrical code (1305.201(e)), and local permit and inspection coverage may be limited. Licensing: Statewide licensing of master, journeyman, and residential wireman electricians through TDLR; a residential wireman may only perform electrical installations in single-family and multifamily dwellings not exceeding four stories (Occupations Code 1305.002). Board: Texas Department of Licensing and Regulation (TDLR) - Electrical Safety and Licensing (https://www.tdlr.texas.gov/electricians/) Next cycle: On the current NEC 2026 since 2026-09-01 (16 TAC 73.100). TDLR applies it to non-exempt work started on or after that date; for work under a permit, the permit date counts as the start (TDLR guidance). TDLR adopts each new edition after NFPA publishes it every three years (Occupations Code 1305.101(a)(2)). Primary source: https://www.tdlr.texas.gov/news/rulemaking/2026/09/01/commission-adopts-rules-12/ ### Utah: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/utah Adoption: Statewide In effect since: July 1, 2025 How it adopts the NEC: Utah adopts the NEC statewide through Title 15A (15A-3-601) with substantial dwelling amendments: the 'through 250-volt' words in 210.8(A) are deleted, 210.8(A)(7) is deleted, 210.8(D)(8) through (12) are deleted, and 210.8(F) outdoor-outlet GFCI, 210.12 AFCI, 210.65 surge protection, 215.18, 225.42 and 230.67 are deleted; 230.71 is replaced. Read 15A-3-601 before citing any of those sections. Amendment 210.12: Deleted by 15A-3-601: no statewide AFCI requirement. Amendment 210.8(F): Deleted: outdoor-outlet GFCI is not required by the state amendments. Amendment 230.67: Deleted: surge protection for dwelling services is not required. Permits: Local building departments issue permits and inspect under the statewide code baseline. Licensing: Statewide licensing of master, journeyman, and residential electricians through DOPL. Board: Utah Division of Professional Licensing (DOPL) - Electricians Licensing Board (https://commerce.utah.gov/dopl/electrical/) Next cycle: No NEC 2026 bill found; NEC 2023 with the Utah amendments in 15A-3-601 remains in force. Primary source: https://le.utah.gov/xcode/Title15A/Chapter2/15A-2-S103.html ### Vermont: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/vermont Adoption: Statewide In effect since: November 5, 2025 How it adopts the NEC: Vermont's Electricians' Licensing Board and Commissioner of Public Safety adopt the 2023 NEC with amendments through the 2025 Vermont Electrical Safety Rules (Division of Fire Safety), effective November 5, 2025. The rules do not apply to a single-family owner-occupied dwelling; single-family rentals and rental accessory dwelling units are covered. The NEC amendments limit laundry-area GFCI to receptacles within 6 feet of a washing machine or sink, add a 210.8(F) outdoor-outlet exception, waive AFCI when existing conductors are extended only to hardwire single-station smoke or CO alarms in an existing dwelling or dormitory unit, and limit an inside service disconnect to 10 feet of conductor from the point of entrance. Separate amendments to NFPA 73 apply to inspections of existing dwellings. Amendment 210.8(A)(11): Laundry areas and rooms: GFCI is required for receptacles within 6 feet of a washing machine or sink. No other part of 210.8(A) is amended for NEC installations (2025 Vermont Electrical Safety Rules, section 5(a)). Amendment 210.12(E): AFCI is not required where existing conductors are extended solely to hardwire single-station smoke or CO alarms in an existing dwelling or dormitory unit; the rule cites this as a 210.12(D)(2) exception, the 2020 number (2025 Vermont Electrical Safety Rules, section 5(a)). Amendment 210.8(F): Exception No. 3 exempts water wells, sewer discharge pumps and hardwired EV chargers with integral GFCI protection and a properly terminated equipment grounding conductor from the dwelling outdoor-outlet GFCI requirement (2025 Vermont Electrical Safety Rules, section 5(a)). Amendment 230.70(A)(1): The service disconnecting means must be outside, or inside nearest the point of entrance with no more than 10 feet of service conductor inside; a service disconnect labeled "Emergency Service Disconnect" can serve as the emergency disconnect (2025 Vermont Electrical Safety Rules, section 5(a)). Amendment 210.8, 210.12: General note: a manufacturer's NRTL listing on AFCI or GFCI use for an appliance may be accepted by the AHJ in place of the code requirement, with supporting documents, added labeling and a report of unwanted tripping; replacing the appliance or altering the circuit requires the current NEC (2025 Vermont Electrical Safety Rules, section 5(a)). Amendment NFPA 73 5.1: Existing-dwelling inspections under NFPA 73: GFCI follows 2023 NEC 210.8(A)(1) through (10) for 125-volt 15- and 20-ampere receptacles only, laundry GFCI applies within 6 feet of the washer or sink, and AFCI need not be added to existing finished-basement receptacles until the circuit is modified or the receptacles are replaced (2025 Vermont Electrical Safety Rules, section 5(a)). Permits: The Division of Fire Safety inspects directly in most areas; a few larger municipalities run delegated programs. Licensing: Statewide licensing of master and journeyman electricians through the Division of Fire Safety. Board: Vermont Department of Public Safety, Division of Fire Safety - Electricians' Licensing Board (https://firesafety.vermont.gov/licensing/electrical) Next cycle: 2025 Vermont Electrical Safety Rules (NEC 2023 with Vermont amendments) since 2025-11-05; no move to 2026 announced. Primary source: https://firesafety.vermont.gov/sites/firesafety/files/Rules/2025%20Vermont%20Electrical%20Safety%20Rules.pdf ### Virginia: NEC 2020 (current) Page: https://electricianhelperpro.com/nec-by-state/virginia Adoption: Statewide In effect since: January 18, 2024 How it adopts the NEC: Virginia adopts the NEC statewide through the Uniform Statewide Building Code (USBC) with routine administrative amendments; no broad AFCI/GFCI exemption is on record. Northern Virginia jurisdictions may see faster inspection turnaround given higher staffing but enforce the same statewide edition. Permits: Local building departments issue permits and inspect under the statewide USBC baseline. Licensing: Statewide licensing of electrical contractors (Class A, B or C contractor licenses) and of journeyman and master electricians (tradesman licenses) through DPOR's Board for Contractors. Board: Virginia Department of Professional and Occupational Regulation (DPOR) - Board for Contractors (https://www.dpor.virginia.gov/) Next cycle: NEC 2020 under the 2021 Virginia USBC (the 2018 USBC grace period ended 2025-01-17); no effective date for the 2024 USBC yet. Primary source: https://www.dhcd.virginia.gov/codes ### Washington: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/washington Adoption: Statewide In effect since: April 1, 2024 How it adopts the NEC: Washington adopts the NEC statewide through the Department of Labor & Industries with a meaningful set of state amendments, including additional seismic and wildfire-urban-interface equipment provisions. No broad AFCI/GFCI exemption is on record. The 2026 rule removes the temperature rating for certain NM and NMC '-B' cable sizes. Permits: L&I or a delegated local jurisdiction (e.g., Seattle) issues permits and inspects. Licensing: Statewide licensing of electrical contractors and certified electricians through L&I. Board: Washington Department of Labor & Industries (L&I) - Electrical Program (https://lni.wa.gov/licensing-permits/electrical/electrical-licensing-exams-education/) Next cycle: NEC 2026 is adopted with a delayed effective date of 2026-12-31 (rule adopted 2025-11-18); NEC 2023 applies until then. Primary source: https://app.leg.wa.gov/wac/default.aspx?cite=296-46B-010 ### West Virginia: NEC 2020 (current) Page: https://electricianhelperpro.com/nec-by-state/west-virginia Adoption: Statewide In effect since: August 1, 2022 How it adopts the NEC: West Virginia adopts the NEC statewide through the State Fire Commission's State Building Code (87 CSR 4) with routine administrative amendments; no broad AFCI/GFCI exemption is on record. 210.8(F) GFCI is not required for new mini-split HVAC units. Amendment 210.8(F): Not required for new mini-split HVAC units. Permits: The state Fire Marshal's office or a delegated local jurisdiction issues permits and inspects. Licensing: Statewide licensing of master and journeyman electricians through the Office of the State Fire Marshal's Regulatory and Licensing Division (W. Va. Code 29-3B); the Division of Labor's Contractor Licensing Board licenses contracting businesses, not electricians. Board: West Virginia Office of the State Fire Marshal - Regulatory and Licensing Division (https://firemarshal.wv.gov/regulatory-and-licensing-division) Next cycle: NEC 2020 under the State Fire Commission's State Building Code; no move to 2023 or 2026 announced. Primary source: https://firemarshal.wv.gov/media/39311/download?inline= ### Wisconsin: NEC 2023 (current) Page: https://electricianhelperpro.com/nec-by-state/wisconsin Adoption: Statewide In effect since: September 1, 2026 How it adopts the NEC: Wisconsin adopts the NEC statewide through SPS 316; the move from NEC 2017 to NEC 2023 took effect 2026-09-01. DSPS did not adopt the full dwelling GFCI expansion of 210.8 or the 50 A outlet requirement. Amendment 210.8: The 2023 dwelling GFCI expansion is not adopted in full; check SPS 316 for the enforced text. Permits: DSPS or a delegated local jurisdiction (many larger cities) issues permits and inspects. Licensing: Statewide licensing of master and journeyman electricians through DSPS. Board: Wisconsin Department of Safety and Professional Services (DSPS) (https://dsps.wi.gov/Pages/Professions/MasterElectrician/Default.aspx) Next cycle: SPS 316 moved from NEC 2017 to NEC 2023 on 2026-09-01; Wisconsin did not adopt the full dwelling GFCI expansion or the 50 A outlet requirement. Primary source: https://docs.legis.wisconsin.gov/ruletext/CR%2026-016 ### Wyoming: NEC 2026 (current) Page: https://electricianhelperpro.com/nec-by-state/wyoming Adoption: State code, with exceptions by jurisdiction or building type In effect since: July 1, 2026 How it adopts the NEC: The State Fire Marshal's Department of Fire Prevention and Electrical Safety licenses electricians statewide and adopts the NEC for the areas its inspectors cover; municipalities and counties with local enforcement authority under W.S. 35-9-121 may adopt and enforce their own editions. Permits: The State Fire Marshal's Office issues electrical wiring permits through its online portal and assigns state electrical inspectors by county; one district is listed as licensing only, and jurisdictions with local enforcement authority (W.S. 35-9-121) run their own permits and inspections. Licensing: Statewide licensing of electrical contractors, master and journeyman electricians, low-voltage/limited contractors and technicians, and apprentice electricians through the State Fire Marshal's Department of Fire Prevention and Electrical Safety (Electrical Board, W.S. 35-9-103). Board: Wyoming State Fire Marshal's Office - Department of Fire Prevention and Electrical Safety (Electrical Board) (https://wsfm.wyo.gov/electrical-safety/licensing) Next cycle: On the current NEC 2026 (effective 2026-07-01); municipalities and counties with local enforcement authority under W.S. 35-9-121 may adopt their own editions. Primary source: https://wsfm.wyo.gov/ ## Calculation guides ### Box fill Page: https://electricianhelperpro.com/guides/box-fill Add up the volume each item takes in cubic inches and compare it with the box's volume (NEC 314.16). Each conductor counts its size's allowance: 2 in³ for 14 AWG, 2.25 for 12 AWG, 2.5 for 10 AWG. A device yoke counts two of the largest conductor connected to it; all equipment grounding conductors together count one; internal clamps count one. ### Voltage drop Page: https://electricianhelperpro.com/guides/voltage-drop The NEC recommends, in informational notes rather than requirements, that voltage drop stay at or below 3% on a branch circuit or a feeder and 5% for the two combined (NEC 210.19 and 215.2). Voltage drop is 2 × K × I × L ÷ circular mils on a single-phase circuit and 1.732 × K × I × L ÷ circular mils on a three-phase circuit, with K = 12.9 for copper and 21.2 for aluminum. ### Conduit fill Page: https://electricianhelperpro.com/guides/conduit-fill Conductors may fill 53% of a conduit's internal area when there is one, 31% when there are two, and 40% when there are three or more (NEC Chapter 9, Table 1). Add the conductors' areas from Chapter 9, Table 5 and compare the total with that percentage of the conduit's area from Chapter 9, Table 4. ### Wire ampacity Page: https://electricianhelperpro.com/guides/wire-ampacity Start from the conductor's ampacity in NEC Table 310.16 for its size, material and insulation temperature rating, multiply by the adjustment factor for more than three current-carrying conductors and the correction factor for an ambient above 30 °C, then apply the small-conductor limits of 240.4(D): 15 A for 14 AWG copper, 20 A for 12 AWG and 30 A for 10 AWG. ### Service load Page: https://electricianhelperpro.com/guides/service-load The optional method for a dwelling (NEC 220.82; 120.82 in NEC 2026) adds the general lighting load per square foot, 1,500 VA for each small-appliance and laundry circuit and the nameplate of fixed appliances, takes the first part at 100% and the rest at 40%, then adds the larger of the air conditioning or heating load. NEC 2026 cut the lighting load from 3 to 2 VA per square foot and the first part from 10 to 8 kVA. ## NEC 2026 changes to the key sections in the app's code library Page: https://electricianhelperpro.com/nec-2026-changes - 90.2, Use and Application of the NEC: The section is retitled and reorganized: what the Code covers and does not cover is now 90.2(A), and the practical-safeguarding purpose is 90.2(B). The special-permission paragraph for utility conductors was deleted; special permission now comes from 90.4(C). - 110.3(B), Using Listed/Labeled Equipment Per Its Instructions: A sentence was added: the instructions in the listing, labeling or identification must result in an installation and use that complies with the Code. - 110.16, Arc Flash Hazard Warning Labels: Old (A) and (B) are combined, and the generic arc-flash warning and the 1000-ampere threshold are gone. In other than dwelling units, service and feeder equipment likely to be worked on while energized needs a permanent label with the nominal voltage, arc-flash boundary, incident energy or required PPE, and the assessment date. - 110.26, Working Space and Clearances About Electrical Equipment: The 24 in. by 6½ ft door-clearance test now applies with equipment doors open to 90 degrees, and working-space depth is measured from the enclosure front where live parts are enclosed. Special permission for smaller spaces at 30 V rms, 42 V peak or 60 V dc or less now covers all dimensions, and the two-exit rule in 110.26(C)(2) also covers feeder disconnects grouped under 225.33(A). - 200.6 → 200.7, Identification of Grounded (Neutral) Conductors: Grounded conductors 6 AWG and smaller with a continuous white or gray finish may now also carry a single colored stripe, other than green, to identify the circuit. - 210.8(A), GFCI Protection - Dwelling Units: Old item (2) is split: 210.8(A)(2) is now garages only, and new (3) covers storage and work areas of accessory buildings, with no at-or-below-grade condition. Later items move down one number (outdoors is now (4), kitchens (7), laundry areas (12)), indoor damp and wet locations are items (13) and (14), and Exception No. 4 covers receptacles inside any exhaust fan assembly. - 210.8(B), GFCI Protection - Other Than Dwelling Units: Indoor damp and indoor wet locations are now separate items, so the list has 16 items and those from locker rooms onward move down one number. The aquarium item now reads open aquatic vessels or containers, and the rooftop-receptacle accessibility exception moved up to 210.8 for all occupancies. - 210.8(F), GFCI Protection - Outdoor Outlets: The limit for GFCI protection of dwelling outdoor outlets rises from 50 to 60 amperes, and new Exception No. 3 allows listed Class C SPGFCI protection for listed HVAC equipment when the HVAC disconnect is marked to say so. - 210.12(B), AFCI Protection - Dwelling Unit Branch Circuits: Exception No. 2 is now permanent (the January 1, 2025 sunset is gone) and also covers the individual branch circuit for an arc-welding outlet in dwelling garages and accessory buildings. - 210.23, Permissible Loads on Branch Circuits: 10-ampere branch circuits (210.23(A)) are limited to lighting outlets and dwelling exhaust fans on bathroom and laundry-room lighting circuits; the gas-fireplace item and the separate list of prohibited loads were removed. - 210.52(A), Dwelling Receptacle Spacing - General (Living Areas): Wall space now breaks at any fixed cabinet, with or without a countertop, and new 210.52(A)(5) bars receptacle outlets below the countertop or work surface of a fixed room divider, such as a bar-type counter, within 24 inches of that surface. - 210.52(C), Countertop and Work Surface Receptacle Spacing: New 210.52(C)(4) bars receptacle outlets below a countertop or work surface within 24 inches of it, including on adjacent walls extending from the base cabinets (receptacles in drawers are excepted). 210.52(C)(2) now requires electrical provisions for a future island or peninsula receptacle where none is installed. - 210.52(D), Bathroom Receptacle Requirements: The section is split into 210.52(D)(1) (the outlet within 3 ft of each sink), (D)(2) (its location) and (D)(3) (listed countertop assemblies), without changing the requirements. - 210.70, Lighting Outlets Required: The sentence on battery-powered switches and wall-mounted control devices is gone, new Exception No. 3 to 210.70(A)(1) lets a laundry closet's lighting outlet and switch be outside the laundry area, and new 210.70(C)(3) bars automatic-only control of all lighting in attics, underfloor spaces and utility rooms unless a manual bypass is provided. - 215.2 → 215.4, Feeder Conductor Sizing: renumbered; no requirement change recorded. - 220.14 → 120.14, Other Load Calculations (Outlet and Equipment Loads): An electric dryer's branch-circuit load is now 5,000 watts or its nameplate rating, whichever is larger, with no dryer demand factors (120.14(B)). The dwelling lighting and receptacle load in 120.41 dropped from 3 to 2 volt-amperes per square foot. - 220.41 → 120.41, Dwelling Unit General Lighting Load (3 VA per Square Foot): The dwelling unit load for general lighting and general-use receptacles drops from 3 to 2 volt-amperes per square foot for feeders and services. The 3 volt-ampere figure remains only in new 120.13, for the minimum number of branch circuits, and floor area under 120.5(C) now leaves out detached garages. - 220.52 → 120.52, Small-Appliance and Laundry Circuit Load Calculation: renumbered; no requirement change recorded. - 220.53 → 120.53, Appliance Load Calculation (Fixed Appliances): renumbered; no requirement change recorded. - 220.54 → 120.54, Electric Clothes Dryer Load Calculation: Table 120.54 was revised: one or two dryers stay at 100 percent, and three to five dryers may now be taken at 80 percent (the first four counted at 100 percent and a fifth at 85 percent before). A dryer's own branch circuit may not use these demand factors (120.14(B)). - 220.55 → 120.55, Electric Range and Cooking Equipment Load Calculation: The range demand table is Table 120.55. - 220.82 → 120.82, Optional Method - Dwelling Unit Load Calculation: The general loads now take the first 8 kVA at 100 percent (it was 10 kVA) and the rest at 40 percent, with general lighting and receptacles at 2 volt-amperes per square foot instead of 3. New 120.82(D) adds EV charging equipment at 100 percent of its 120.57 load. - 230.42, Minimum Size and Rating of Service-Entrance Conductors: The service load calculation reference now points to Article 120, the former Article 220; the sizing rules did not change. - 230.70, Service Disconnecting Means - General: A one- or two-family dwelling's service disconnect must now be outdoors, readily accessible and on or within sight of the dwelling unless a 225.41 emergency disconnect is installed (230.70(A)(1)), and it is marked EMERGENCY DISCONNECT (230.70(B)(2)); other buildings keep the outside-or-nearest-point-of-entrance rule as 230.70(A)(2). The bathroom ban is now 230.70(A)(3), every service disconnect is marked SERVICE DISCONNECT, and new 230.70(D), (E) and (F) cover other-source directories, service replacement and remote control. - 230.71, Number of Service Disconnects: The 230.71(B) list is renumbered: enclosed panelboards count as separate enclosures (an informational note replaces the old item), metering centers are item (4) and motor control centers item (5). - 230.85 (deleted), Emergency Disconnects - One- and Two-Family Dwellings: A one- or two-family dwelling's service disconnect itself must now be outdoors, readily accessible, on or within sight of the dwelling and marked EMERGENCY DISCONNECT (230.70(A)(1) and (B)(2)). The other-source directory and replacement rules moved to 230.70(D) and (E), and dwellings supplied by a feeder use 225.41. - 240.6, Standard Ampere Ratings for Overcurrent Devices: A remotely adjustable breaker may use its adjusted long-time pickup setting as its rating only when local access to the adjusting means is restricted by a 240.6(C) method and remote access meets the listed conditions; 240.6(C) now applies to breakers that cannot be adjusted remotely. - 240.24, Location and Accessibility of Overcurrent Devices: A new exception to 240.24(E) allows overcurrent devices in existing bathroom panelboards that an earlier Code edition allowed there. - 250.64, Grounding Electrode Conductor Installation: A wire-type grounding electrode conductor may now be spliced with listed grounding and bonding equipment at an accessible location (new 250.64(C)(2); the busbar, building-steel and water-pipe items move to (C)(3) to (C)(5)). 250.64(G) now also bars running the conductor through mounting or drainage openings. - 250.104, Bonding of Piping Systems and Exposed Structural Steel: In multiple-occupancy buildings, an occupancy's metal water piping isolated from the others by insulating fittings, not only by nonmetallic pipe, may now be bonded at the switchboard or panelboard that supplies that occupancy. - 250.118, Types of Equipment Grounding Conductors: Some 250.118(A) wiring methods now have voltage limits as equipment grounding conductors: flexible metallic tubing only with circuit conductors of 1000 volts or less, and Type AC armor, the Type MI sheath and listed surface metal raceways only with circuit conductors of 600 volts or less. - 250.122, Sizing Equipment Grounding Conductors: The section is re-lettered without changing the sizing rules: the Table 250.122 minimum is in the main paragraph, (A) to (C) cover conductors not larger than the circuit conductors, non-wire and sectioned equipment grounding conductors, and the old (B) to (G) are now (D) to (I). - 250.146, Connecting Receptacle Grounding Terminals to Boxes: Isolated-ground receptacles are no longer limited to installations made to reduce electrical noise; the insulated equipment grounding conductor arrangement in 250.146(D) is allowed whatever the reason. - 300.4 → 300.6, Protection of Conductors and Cables from Physical Damage: The 1-1/2 in. separation from roof decking (300.6(E)) now applies under all roof decking, not only metal-corrugated decking, and the bushing or fitting for 4 AWG and larger conductors (300.6(G)) no longer has to be installed before the conductors are pulled. - 300.5 → 300.7, Underground Installation Requirements: The minimum-cover table is Table 300.7(A), and the warning-ribbon rule (300.7(D)(3)) now says it covers raceways with service conductors as well as direct-buried service conductors. - 300.14 → 300.16, Length of Free Conductors at Outlets and Switch Points: The number 300.14 now covers mechanical continuity of raceways and cables. - 300.15 → 300.17, Boxes or Fittings Required at Splice/Termination/Pull Points: A fitting used in place of a box (300.17(F)) must stay accessible only when it serves as a pull point; the wording about fittings listed for concealed installation was removed. - 310.10, Conductor Uses and General Installation Requirements: Conductors exposed to direct sunlight may also be bare, or have insulation that is not sunlight-resistant, wherever the Code permits bare conductors, such as equipment grounding or grounding electrode conductors (310.10(D)). - 310.12, Single-Phase Dwelling Services and Feeders: The Table 310.12(A) sizing for dwelling services and feeders is permitted only with conductors or cables rated 75°C or higher; 60°C conductors are sized from the regular ampacity tables. - Table 310.16, Allowable Ampacities of Insulated Conductors: Ampacities were added for 16 AWG copper and 14 AWG copper-clad aluminum, which the new minimum-size rule in 310.5(A) allows. - 312.8 → 312.11, Enclosures for Switches or Overcurrent Devices - Wiring Space: The number 312.8 now covers cables and raceways entering cabinets. Feed-through, spliced or tapped conductors in the wiring space (312.11(A)) must also meet a fifth condition: service conductors must be located within the service equipment. - 314.23, Support Requirements for Boxes and Enclosures: A single raceway may now support an FS or FD single-gang device box or an explosionproof outlet box as well as a conduit body: under 314.23(E) without devices or luminaires, and under 314.23(F) Exception No. 1 on a single RMC or IMC with devices or luminaires. - 314.27, Outlet Boxes for Luminaire or Lampholder/Fan Support: The ceiling-fan box rule moved to 314.27(B) and now requires a fan-rated or framing-access box only at ceiling outlets centered in dwelling living and sleeping areas, plus locations designated for a fan. - 334.10, Uses Permitted for Type NM Cable: A new exception to 334.10(3) allows NM or NMC cable without a 15-minute thermal barrier in nonhabitable, grade-level storage garages and storage buildings under 1500 sq ft of Type V construction. - 334.30, Securing and Supporting NM Cable: Staples, straps, hangers and similar fittings used to secure NM cable must now be listed; listed cable ties remain an option. The allowance for fished or short unsupported runs now also covers leaving those runs unsecured. - 404.2(C) → 406.30(C), Switches Requiring a Grounded (Neutral) Conductor: Snap switches are now covered in Article 406. One exemption was reworded: no neutral is required where the lighting is controlled from a remote location (the 2023 text said controlled by automatic means). - 406.4(D) → 406.12(D), Replacement of Existing Receptacles: The GFCI replacement exception is narrower: a new receptacle of the existing type may go back in without GFCI protection only if the box is too small for a GFCI receptacle, no upstream outlet box can take one, and a GFCI breaker cannot provide the protection. - 406.9(B), Receptacles in Wet Locations: The section is retitled for damp and wet locations and now also covers switches; the wet-location receptacle rules were regrouped into lettered items without changing what they require. - 406.12 → 406.26, Tamper-Resistant Receptacles: Park and recreation areas, such as garden and play areas, were added to the places that need tamper-resistant receptacles. - 422.5, GFCI Protection for Appliances: From January 1, 2029, a GFCI protecting a refrigerator or an HVAC appliance must be a high-frequency (HF) type. - 424.4, Branch Circuits for Fixed Electric Space Heating Equipment: The 125 percent rule moved out: new 424.5 treats fixed electric space-heating equipment and its motors as a continuous load for overcurrent devices, feeders and services as well as branch-circuit conductors. 424.4 keeps the branch-circuit limits: any rating on an individual circuit, 30 amperes on multioutlet circuits, and up to 50 amperes for infrared heaters outside dwelling units. - 430.22, Motor Branch-Circuit Conductor Sizing: New 430.22(H) covers Design BE and CE high-efficiency motors: conductors for a single such motor in continuous duty need at least 125 percent of the 430.6(A)(1) full-load current; other duty cycles follow 430.22(E). - 430.52, Motor Branch-Circuit Short-Circuit and Ground-Fault Protection Sizing: Design BE and Design CE motors were added to the table, with the same limits as Design B energy-efficient motors, including the 1100 percent maximum for instantaneous-trip breakers. - 480.4, Battery and Cell Terminations (Stationary Standby Batteries): The corrosion rule in 480.4(A) now applies to batteries with acidic or caustic electrolyte and calls for an approved corrosion inhibitor per the battery manufacturer's instructions. Article 480 now covers all stationary batteries over 1 kWh, not only standby batteries, and the listing rule moved to 480.2. - 517.13, Grounding of Patient Care Spaces (Health Care Facilities): 517.13(A) now says the metal wiring method for patient care space branch circuits includes metallic outlet, device and junction boxes, fittings and enclosures, so nonmetallic boxes cannot be used with it. - 550.32 → 550.51, Electrical Service Requirements for Manufactured Homes: Article 550 was reorganized. When existing service equipment is reconnected to a replacement mobile or manufactured home, a surge-protective device must now be installed, and the mobile home service equipment follows the Article 230 service rules, including its use as the emergency disconnect. - 590.6 → 590.7, GFCI Protection for Temporary Wiring Installations: The number 590.6 now holds the general temporary-wiring requirements that were 590.4. - 625.41, EV Charging Equipment Overcurrent Protection: The section is now titled Continuous Loads and treats EV charging equipment loads on feeders and branch circuits as continuous; the 125 percent sizing of overcurrent protection now comes from the general branch-circuit and feeder rules. - 625.42, EV Charging Equipment Rating and Continuous Load Treatment: The service, feeder and branch circuit must have enough rating for the EV load; the continuous-load statement moved to 625.41, and the load-limiting option in 625.42(A) is now a power control system under Article 130 (restricted-access adjustable settings stay in 625.42(B)). - 625.44, EV Charging Equipment Connection (Cord-and-Plug or Permanent): Receptacles of 30, 50 and 60 amperes supplying EV charging equipment must be listed for that use, cord-and-plug equipment needs an attachment plug rated at least 125 percent of the equipment rating, a 50-ampere receptacle may not be on a 40-ampere branch circuit, and 277-volt and 277/480-volt receptacles are added. - 680.21, Pool Pump Motors: The Class A GFCI coverage 680.21(C) takes from 680.5 now reaches three-phase pool-motor circuits up to 100 amperes (single-phase stays at 60 amperes), and a variable-speed pool motor's ground-fault protection may not sit between the drive output and the motor. 680.21(D) also applies when a pool pump motor is reconditioned. - 680.26, Equipotential Bonding for Permanently Installed Pools: Pool equipotential bonding may use 8 AWG or larger 40 percent copper-clad steel as well as solid copper, the bonded perimeter surface now extends to 3 ft below the maximum water level (it was 2 ft) and names masonry pavers, and metal structures within or attached to the pool or perimeter surface must be bonded. - 690.12, Rapid Shutdown for PV Systems on Buildings: The rapid-shutdown initiation rules in 690.12(C) were reorganized: initiation devices must be readily accessible and may be the service disconnect, the PV system disconnect or a listed switch, and a switch no longer has to show on and off, so E-stop-type switches are allowed. - 690.13, PV System Disconnecting Means: PV system disconnecting means are now installed as 705.20 requires; 690.13 keeps the simultaneous-disconnect, lockable-open, PV SYSTEM DISCONNECT marking and six-disconnect rules. - 702.4, Optional Standby System Capacity and Rating: New 702.4(A)(3): in one- and two-family dwellings, a multimode inverter system listed as a power control system for overload control may pick up loads automatically if its capacity covers its control setting and the largest single load; after an overload shutdown it may only be reconnected manually. - 702.5, Optional Standby Interconnection or Transfer Equipment: Interlocking devices are named alongside interconnection and transfer equipment, and the temporary-connection exception applies to any portable alternate power source, not only a portable generator. - 705.12, Interconnected Electric Power Production Source Connections: The load-side connection methods are the same, including the 120 percent rule for a source and main breaker at opposite ends of a busbar; the 'do not relocate' warning label is now also required on source breakers at either end of a center-fed dwelling panelboard.