N.D. Cent. Code § 43-09-21
All electrical and power limited wiring, apparatus, or equipment must comply with the rules of the board made under authority of the laws of this state and in conformity with the approved methods of construction for safety to life and property. The regulations in the national electrical code and the national electrical safety code as approved by the American national standards institute are prima facie evidence of these approved methods. Although a city may make more stringent requirements by ordinance, application of the ordinance must be limited to individuals licensed by the board under this chapter. An electrical or power limited system installation may not be connected for use until proof has been furnished to the person supplying electrical energy that there is compliance with the applicable regulations. The manufacturer of a new manufactured building or modular unit shall make any changes required for the proof within fourteen days from the notice that the building or unit does not comply with the applicable regulations. This section does not apply to the movement of a new manufactured building or modular unit into or within this state before the process of being connected for use.
N.D.C.C. § 43-09-21