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Montana Contractor License (MT) Plumbing and electrical work (greater than 90 volts) is regulated at the state level in Montana. All other construction work greater than $2,500 requires registration. To register, please contact the Contractor Registration Unit at 1-406-444-7734. To apply for a plumbing or electrical license, please contact the Business and Occupational Licensing Bureau at 1-406-841-2300. Please select the license/exam that you are interested in. |
