Auto Repair Shop Permit Requirements in Denver, CO

Complete permit and license guide for starting a auto repair shop in Denver, Denver County, Colorado.

$500 -- $2000 4–9 weeks to obtain all licenses, permits, and complete inspections 9 requirements

Not legal advice. Requirements may change — always verify with your local government authority before applying. Last verified: February 15, 2026.

Denver / Denver County Requirements

4 requirements

Denver Business License

All businesses operating in Denver must obtain a Denver Business License from the Excise and Licenses Department. Auto repair shops require a general business license at minimum, and the Certificate of Occupancy must be in order. Contact Denver Excise and Licenses for the specific license class applicable to auto repair.

$50–$500 (varies by business type and license class)1–3 weeks

Official government source

Denver Building and Zoning Permit

Auto repair shops must be located in appropriately zoned areas (industrial I-A, I-B, or commercial C-MX zones in Denver). A building permit is required for any improvements to the facility. Contact Denver Community Planning and Development for zoning verification and building permits.

$200–$1,000 (varies by project scope)2–6 weeks

Official government source

Denver Fire Department Inspection

Auto repair shops storing and handling flammable liquids are subject to Denver Fire Department inspection. A certificate of occupancy requires fire safety compliance.

Included in CO process1–3 weeks

Official government source

Colorado CDPHE — Hazardous Waste and Used Oil Registration

Denver auto repair shops generating used oil, antifreeze, solvents, and other hazardous materials must register with the Colorado Department of Public Health and Environment (CDPHE). Paint booths require separate air permits through CDPHE.

Free (registration); air permits vary ($100–$500)2–6 weeks

Official government source

Colorado State Requirements

3 requirements

Colorado Motor Vehicle Repair — No State License Required

Colorado does not require a separate state auto repair shop license for general mechanical repair. The Colorado Motor Vehicle Repair Act sets consumer protection standards (written estimates, authorization, warranty), but there is no pre-licensing requirement. Dealers selling vehicles need a Colorado dealer license, but repair-only shops do not.

No feeN/A

Official government source

Colorado Sales Tax License

Auto repair shops must obtain a Colorado Sales Tax License to collect sales tax on parts sold. Labor may be exempt depending on the type of service. Denver has its own city sales tax in addition to the state rate. Apply through the Colorado Department of Revenue.

$16 (state license fee)Immediate (online) to 1 week

Official government source

EPA Section 609 Certification (Automotive A/C)

Technicians who service vehicle air conditioning systems must be EPA Section 609 certified. Required for individual technicians handling refrigerants.

$20–$35 per technicianExam at approved testing center; certificate immediate upon passing

Official government source

Federal Requirements

2 requirements

EPA Small Quantity Generator (SQG) Registration

Auto repair shops that generate used oil, antifreeze, or other hazardous waste must register with the EPA as a hazardous waste generator. Most auto shops qualify as Small Quantity Generators (SQG). Registration is administered through CDPHE in Colorado.

Free (registration only; disposal costs vary)2–4 weeks

Official government source