Administrative Rules of Montana
Department 24 - LABOR AND INDUSTRY
Chapter 24.301 - BUILDING CODES
Subchapter 24.301.4 - Electrical Requirements
Rule 24.301.411 - WIRING STANDARDS

(a) NEC ARTICLE 110.2 (SUPPLEMENTARY). When requested, complete wiring diagrams shall be provided prior to installation of conductors and equipment indicating the conductor's and equipment's intended use.

(b) NEC Article 550.32(A): The allowable distance for service equipment from the exterior wall of a manufactured or mobile home is increased from 30 ft (9.14 m) to 50 ft (15.24 m).

(c) NEC Article 550.33(A): Add the following: It shall be permissible to feed a manufactured (mobile) home with type SER cable when the service equipment is mounted on the exterior of the home. Physical protection of the cable is required by enclosing the cable in an approved raceway where the cable is run on the outside of the home. The cable is to be properly supported and attached per Article 338 where installed under the home.

(d) NEC Article 760.1 (SUPPLEMENTARY). Smoke alarms and carbon monoxide alarms shall be installed in any building or structure as required under the currently adopted International Building Code or International Residential Code, whichever applies, regardless of whether or not the building or structure is exempt by 50-60-102, MCA.