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Roofing Permitting Authorities in Montana

Montana licenses construction contractors at the state level — since January 1, 2026 the Department of Labor and Industry’s Construction Contractor License under MCA Title 37, chapter 45 has replaced the old contractor registration, and the statute’s definition of a construction contractor expressly includes the installation or repair of roofing, with exemptions that include a job whose whole contract price is under $2,500 and an independent contractor with no employees — and a city or county may not require a second registration, licence or bond of a contractor the state covers, only a general business licence fee, while the state building code, apart from its energy provisions, does not reach a house of fewer than five dwelling units unless the city or county extends it by ordinance or resolution, a local government may enforce a building code only through a program the state has certified, and it may not adopt one more stringent than the state’s — always confirm the current requirements with the authority before starting work. 11 permitting authorities in Montana, each linked to its own sourced record.