NEC 2020, 2023, and 2026 are all enforced somewhere in the US right now. States adopt each new edition of the National Electrical Code on their own legislative timeline — some move fast, some take years. Find your state below to see which edition currently applies.
NEC 2020, 2023, and 2026 are all in active use right now — states adopt each edition on their own timeline.
| State | Current Edition | Scope | Notes | |
|---|---|---|---|---|
| Alabama | NEC 2023 | statewide | ||
| Alaska | NEC 2020 | statewide | Not independently re-verified this session against a primary source — confirm before relying on this row. | |
| Arizona | NEC 2023 | local varies | No single statewide mandate — the county or city decides. 2023 is the common baseline used by most jurisdictions; always confirm with your local AHJ. | |
| Arkansas | NEC 2023 | statewide | ||
| California | NEC 2023 | statewide | 2025 California Electrical Code (Title 24, Part 3), effective Jan 1, 2026, adopts the 2023 NEC with California amendments. California's triennial cycle runs about one NEC edition behind the national schedule. | Practice Tests |
| Colorado |
NEC 2023
NEC 2026 pending (Aug 2026)
|
statewide | 2026 adoption hearing held May 27, 2026 by the Colorado Electrical Board; expected effective around Aug 1, 2026 pending finalization. | |
| Connecticut |
NEC 2023
NEC 2026 pending
|
statewide | 2026 adoption reported in progress. | |
| Delaware | NEC 2023 | statewide | ||
| Florida | NEC 2020 | statewide | 8th Edition Florida Building Code, effective Dec 31, 2023, adopts the 2020 NEC with Florida amendments — Florida runs about a cycle behind the national NEC schedule. | Practice Tests |
| Georgia |
NEC 2023
NEC 2026 pending
|
statewide | 2026 adoption reported in progress. | |
| Hawaii | NEC 2023 | statewide | ||
| Idaho | NEC 2023 | statewide | Effective Jan 17, 2026 per the Idaho Division of Building Safety — Idaho had been enforcing an older edition until this update. Not yet on NEC 2026 despite some third-party trackers claiming otherwise. | |
| Illinois |
NEC 2023
NEC 2026 pending
|
local varies | No single statewide electrical code — adopted locally by city/county (Chicago enforces its own electrical code). 2023 is the common baseline elsewhere in the state. | |
| Indiana | NEC 2017 | statewide | Indiana enforces the 2017 NEC with state amendments for one- and two-family dwellings; commercial requirements can differ locally. | |
| Iowa | NEC 2023 | statewide | ||
| Kansas | NEC 2023 | local varies | Adoption is left to local jurisdictions across much of the state. | |
| Kentucky | NEC 2023 | statewide | ||
| Louisiana | NEC 2023 | statewide | ||
| Maine |
NEC 2023
NEC 2026 pending
|
statewide | 2026 adoption reported in progress. | |
| Maryland |
NEC 2023
NEC 2026 pending
|
statewide | 2026 adoption reported in progress. | |
| Massachusetts | NEC 2026 | statewide | Massachusetts Electrical Code (527 CMR 12.00), 2026 edition, voted by the Board of Fire Prevention Regulations Advisory Committee on Jan 5, 2026 — one of the first states enforcing NEC 2026. | |
| Michigan |
NEC 2023
NEC 2026 pending
|
statewide | 2026 adoption reported in progress. | |
| Minnesota |
NEC 2023
NEC 2026 pending
|
statewide | Minnesota Dept. of Labor and Industry has an active 2026 adoption review underway. | |
| Mississippi | NEC 2023 | statewide | ||
| Missouri | NEC 2020 | no statewide code | No mandatory statewide electrical code — adopted locally by individual cities and counties. Edition shown is a common regional baseline, not a state mandate; always confirm with your local building department. | |
| Montana |
NEC 2023
NEC 2026 pending
|
statewide | 2026 adoption reported in progress. | |
| Nebraska | NEC 2023 | statewide | ||
| Nevada |
NEC 2023
NEC 2026 pending
|
local varies | No single statewide mandate — Clark County/Las Vegas and other jurisdictions each set their own adoption timeline. | |
| New Hampshire | NEC 2026 | statewide | Reported adopted alongside Massachusetts and Vermont. Confirm directly with the NH State Fire Marshal / building code review board before relying on this for exam prep — not independently confirmed against a primary source this session. | |
| New Jersey |
NEC 2023
NEC 2026 pending
|
statewide | 2026 adoption reported in progress. | |
| New Mexico | NEC 2023 | statewide | ||
| New York | NEC 2023 | statewide | State Electrical Board adopted the 2023 NEC effective Aug 1, 2023; the broader state Uniform Code transition completed around Dec 2025. New York City enforces its own NYC Electrical Code, which can differ from the state Uniform Code — always check NYC DOB separately for city work. | |
| North Carolina |
NEC 2020
NEC 2023 pending
|
statewide | 2023 NEC adoption reported in progress; the 2020 NEC is currently enforced statewide. | |
| North Dakota | NEC 2023 | statewide | ||
| Ohio |
NEC 2023
NEC 2026 pending
|
statewide | 2026 adoption reported in progress. | |
| Oklahoma | NEC 2023 | statewide | ||
| Oregon |
NEC 2023
NEC 2026 pending (Oct 2026)
|
statewide | 2026 Oregon Electrical Specialty Code adoption process underway; effective date reported as Oct 1, 2026. Not yet on NEC 2026 despite some third-party trackers claiming otherwise. | |
| Pennsylvania | No statewide code | no statewide code | Pennsylvania has no mandatory statewide electrical code — adopted locally by county/municipality (Philadelphia and Pittsburgh each maintain their own codes). Always confirm with your local building department. | |
| Rhode Island |
NEC 2023
NEC 2026 pending
|
statewide | 2026 adoption reported in progress. | |
| South Carolina | NEC 2023 | statewide | ||
| South Dakota | NEC 2023 | statewide | ||
| Tennessee | NEC 2020 | statewide | ||
| Texas | NEC 2023 | statewide | Effective Sept 1, 2023. Texas Department of Licensing and Regulation (TDLR) adopts the revised NEC every 3 years per the Texas Occupations Code. | Practice Tests |
| Utah | NEC 2020 | statewide | 2020 NEC took effect statewide July 1, 2023 as part of the 2021 I-code adoption cycle. Not yet on NEC 2026 despite some third-party trackers claiming otherwise. | |
| Vermont | NEC 2026 | statewide | Reported adopted alongside Massachusetts and New Hampshire. Confirm directly with the Vermont Department of Public Safety before relying on this for exam prep — not independently confirmed against a primary source this session. | |
| Virginia | NEC 2020 | statewide | ||
| Washington |
NEC 2023
NEC 2026 pending (Dec 2026)
|
statewide | L&I proposing full adoption of the 2026 NEC with a delayed effective date of Dec 31, 2026. Not yet on NEC 2026 despite some third-party trackers claiming otherwise. | |
| West Virginia | NEC 2023 | statewide | ||
| Wisconsin |
NEC 2023
NEC 2026 pending
|
statewide | 2026 adoption reported in progress. | |
| Wyoming | NEC 2023 | statewide | ||
| District of Columbia | No statewide code | statewide | No data found during this research pass — this row must be verified before being trusted or displayed with confidence. |
No states match your search.
Data as of July 2026. verified against a primary source · reported by secondary trackers · unverified — NEC adoption is an ongoing legislative process and cities/counties can differ from their state or lag behind it. This table is a study aid, not a legal reference — always confirm the current requirement with your state licensing board or local Authority Having Jurisdiction (AHJ) before an exam or an installation.
Licensing exam questions are usually written against whatever NEC edition your state currently enforces — not necessarily the newest published edition. If a practice question and your state board disagree on an article number, trust your state board. See our NEC 2023 and NEC 2026 change guides for what moved between editions.
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