HVAC Contractor Permit Requirements in Billings, MT
Complete permit and license guide for starting a hvac contractor in Billings, Yellowstone County, Montana.
Not legal advice. Requirements may change — always verify with your local government authority before applying. Last verified: .
Billings / Yellowstone County Requirements
3 requirementsMontana Department of Labor and Industry — HVAC Mechanical Contractor License
HVAC contractors in Montana must hold a Mechanical Contractor License. EPA Section 608 certification is required for refrigerant handling. Permits are required for each project.
City of Billings City Clerk — Business License
Billings requires a Business License for regulated businesses operating within city limits. The City Clerk's office processes applications. This license must be renewed annually and displayed at your place of business.
Yellowstone County / Billings Mechanical Permit (per project)
A mechanical permit must be obtained from the local building department for each HVAC installation or major repair. Inspections are required upon completion.
Montana State Requirements
2 requirementsMontana — No Sales Tax
Montana has no state or local sales tax. Businesses do not need a sales tax permit. However, businesses must register with the Montana Department of Revenue for applicable business taxes (e.g., withholding, corporate income tax if applicable).
EPA Section 608 Certification (for refrigerants)
Technicians who purchase, recover, or handle refrigerants must hold EPA Section 608 certification. Required by federal law regardless of state.
Federal Requirements
1 requirementEIN (Employer Identification Number)
Required if you have employees or operate as an LLC or corporation. Free from the IRS.
Official Sources
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