Montana — electrical code & licensing
Verified
The code
| Edition in force | 2023 NEC (NFPA 70-23), adopted in the 2024 code cycle and amended under ARM Title 24, ch. 301 |
| Edition structure | One statewide edition |
| Effective date | 2026-09-26 |
| Date as recorded | 2026-09-26 |
| Adopted by | Montana Department of Labor & Industry, Building Codes Program (adoption); Montana State Electrical Board (licensing) |
| Adoption source | https://bsd.dli.mt.gov/building-codes-permits/current-codes |
| State amendments | Amendments are inside the adoption instrument; no separate document |
Licensing
| Model | State licensing of individual electricians and electrical contractors by the State Electrical Board |
| Authority | Montana State Electrical Board (Department of Labor & Industry) |
| Licensing source | http://boards.bsd.dli.mt.gov/electrical/ |
| License classes | http://boards.bsd.dli.mt.gov/electrical/ |
Permits & inspections
State electrical permits are required on all electrical work EXCEPT in cities, counties or towns certified to issue their own electrical permits and inspect; electrical work for state agencies always permits through the Department.
How this record was verified
| Adoption | Verified |
| Amendments | Verified |
| Licensing | Verified |
| Permits & inspections | Verified |
Working notes
Classes: Master Electrician, Journeyman Electrician, Residential Electrician, and Electrical Contractor (a contractor must have a Montana-licensed master electrician as its responsible party). Prior adoption: 2020 NEC, adopted 2022-06-10. The NFPA enforcement map (as of 2026-08-03) still showed Montana's 2023 update as 'projected 9/2026'; the DLI Current Codes page (official) states the 2023 edition effective September 26, 2026 and controls.
Reference only. Compiled from the cited official sources as of the date shown; adoptions and rules change. Confirm with the authority having jurisdiction before designing or permitting work.