2026 National Electrical Code
Are you in Compliance?
As of February 1, 2021, the 2020 NEC is in effect in nine states, the 2017 NEC is in effect in twenty-seven, the 2014 NEC is in effect in eight states and the 2008 NEC is in effect in two states.
The 2020 edition of the NEC was issued by the NFPA Standards Council on August 5, 2019. The effective date was August 25, 2019, when it officially became available for federal, state, county, and municipal governmental entities to update their electrical installation regulations.
Essential Resources
NEC 2023 GFCI requirements: making your next installation safer | Eaton PSEC
Power Defense
National Electrical Code 2020
Application Notes
On-Demand Webinar Videos
Element 14 Community Road Test of the Power Defense CB
Make Compliance Easy with These Tools
FC2 Available Fault Current Calculator
Know the range of potential fault currents where your equipment may be installed.
SCCR Protection Suite
Design equipment for the highest available short-circuit current or with an alternate bill-of-material to address the high available fault current.
OSCAR 2.1 Software
Calculate SCCR for your equipment, address any weak spots, and document the equipment's rating.
Eaton Asset Manager
Become a Hero – Get direct access to electrical component information including technical data, test reports, and authentication
Recommended Products For You
Power Defense Circuit Breaker
Power Defense Circuit Breakers give tremendous insight into your electrical system. The Circuit Breakers are UL and globally rated up to 2,500 amps and 600 Volts AC
XT Motor Control
Eaton's Industrial IEC Motor Control – Overload Relays, Contactors and Starters are built to handle customer's rugged environments. XT Series is built for applications from 1 to 2000 amps.
M22 Family of Emergency Stops
The M22 family of E-Stops offer non-illuminated and illuminated Emergency Stop Switches with push-pull operation as well twist to release.
FAZ Series Industrial Miniature Circuit Breakers
Eaton's FAZ UL489 and UL1077 Industrial miniature CB's available to 480 VAC and available as a 1, 2 & 3 pole with ratings to 40 amps.
Bussmann Series Modular Fuse Holder
Finger-safe DIN-Rail mount fuse holder features 200 kA SCCR and can be used with Class CC and midget fuses.
CT Type CurrentWatch Sensor
Self-contained sensor monitors current flow in equipment. By detecting small changes in current, it helps avoid costly repairs and mechanical problems before they occur.
When do I need to be Compliant?
| State | Current Edition of the NEC in effect (effective date) | 2020 or 2023 NEC UPDATE status (effective date) | Other editions of NEC Update status (effective date) |
| Alabama | 2020 (7/1/2022), Alabama Division of Construction Management | ||
| Alaska | 2020 (4/16/2020) | ||
| Arizona | Local adoption only | ||
| Arkansas | 2020 with AR amendments (8/1/2022) | ||
| California | 2020 with CA amendments (1/1/2023) | 2023 update process complete (1/1/2026) | |
| Colorado | 2023 (8/1/2023) | ||
| Connecticut | 2020 with CT amendments (10/1/2022) | 2023 update process underway (Effective date not established) | |
| Delaware | 2020 (9/1/2021) | 2023 update process underway (Effective date not established) | |
| Florida | 2020 (12/31/2023) | 2023 update process underway (Effective date not established) | |
| Georgia | 2023 (1/1/2025) | ||
| Hawaii | 2020 (3/14/2023) | ||
| Idaho | 2023 (7/1/2023) with ID amendments (temporary rules permit use of 2017 NEC w/ID amendments) | ||
| Illinois | 2008 (7/1/11 - commercial occupancies for areas outside of local jurisdictions that have adoption authority) | ||
| Indiana | 2008 Commercial with IN amendments (8/26/2009) 2017 (2018 IRC) One- and two-family dwellings with IN amendments (12/26/2019) | 2023 Update process underway (Effective date not established) | |
| Iowa | 2023 with IA amendments (7/1/2025) | ||
| Kansas | 2008 (2/4/11 - State Fire Marshal) | ||
| Kentucky | 2023 (1/1/2025) | ||
| Louisiana | 2020 (1/1/2023) | ||
| Maine | 2023 with Maine amendments (7/1/2024) | ||
| Maryland | 2020 (7/1/2025) with MD amendments | 2023 update process underway (Effective date not established) | |
| Massachusetts | 2023 with MA amendments (2/17/2023) | ||
| Michigan | 2023 Commercial (3/12/2024) 2017 One- and two-family dwellings (2/8/2016) | Residential 2023 update process complete (8/29/2025) | |
| Minnesota | 2023 (7/1/2023) | ||
| Mississippi | Local adoption only | ||
| Missouri | Local adoption only | ||
| Montana | 2020 with MT amendments (6/10/2022) | ||
| Nebraska | 2023 (8/1/2024) | ||
| Nevada | 2017 (7/1/18 - Nevada State Pubic Works Division) | ||
| New Hampshire | 2023 with NH amendments (7/1/2025 with 6-month grace period permitting use of prior edition that was in effect) | ||
| New Jersey | 2020 with NJ amendments (9/6/2022) | ||
| New Mexico | 2020 (3/28/2023) | ||
| New York | 2017 (5/12/2020) | 2023 update process underway (Effective date not established) | |
| North Carolina | 2020 with NC amendments for other than one- and two-family dwellings (11/1/21) | 2023 update process underway (Expected date not established) | |
| North Dakota | 2023 (7/1/2024) | ||
| Ohio | 2023 Commercial (3/1/2024) Residential with OH amendments (4/15/2024) | ||
| Oklahoma | 2023 (9/14/2024) | ||
| Oregon | 2023 with OR amendments (10/1/2023) | ||
| Pennsylvania | 2017 (2/14/2022) | 2020 update process underway (Effective date not established) | |
| Rhode Island | 2020 (2/1/2022) | ||
| South Carolina | 2020 with SC amendments (1/1/2023) | 2023 update process underway (Projected 8/4/2025) | |
| South Dakota | 2023 (11/12/2024) with SD amendments | ||
| Tennessee | 2017 (10/1/2018) with TN amendments | ||
| Texas | 2023 (9/1/2023) | ||
| Utah | 2023 Commercial (7/1/2025) with UT amendments 2020 One- and two-family dwellings (7/1/2025) with UT amendments | ||
| Vermont | 2020 with VT amendments (4/15/2022) | ||
| Virginia | 2020 (1/18/2024) | 2023 update process underway (Effective date not established) | |
| Washington | 2023 (4/1/2024) | ||
| West Virginia | 2020 with WV amendments (8/1/2022) | ||
| Wisconsin | 2017 Commercial (8/1/2018) Residential (1/1/2020) | 2023 update process underway (Effective date not established) | |
| Wyoming | 2023 (7/1/2023) | ||
| Chicago | 2017 with Chicago amendments (3/1/2018) | ||
| New York City | 2008 w/NYC amendments (7/1/2011) | 2020 update process underway (Projected 12/21/2025) |