In North Dakota, electrical services must comply with NEC^® Article 230 but a few additional rules specific to North Dakota must also be followed:

1. A perpendicular mast used for support of a service may not be less than two-inch galvanized rigid steel conduit or intermediate metal conduit, fitted with storm collar flashing.
2. For outside switch locations, the equipment be not be mounted lower than two feet above grade level unless listed for such purpose.
3. All services in single-family dwellings must be located in a single accessible location.

Exception: Special permission shall be granted by the electrical inspector for a second service location to be added where there is no available space for the service equipment. The second service location mustbe installed in accordance with article 230.2, 2023 edition, National Electrical Code (first version, printed in 2022).

4. Rating of service switch. Any new or old single-family dwelling where the main house panel or service is altered or repaired, the dwelling is moved, or where the dwelling is rewired, a minimum one hundred ampere service-rated panel must be installed. Replacement of service mast or meter enclosure is an alteration of the service.

Refer to the Laws, Rules and Wiring Standards of North Dakota for additional rules pertaining to services not covered in the above commentary.