Mobile mechanic license in Missouri

In Missouri, general repair work needs no state mechanic license, but performing official state safety or emissions inspections requires a separate certification (—). General mobile repair itself is not state-licensed.

Missouri at a glance

Federal rules that apply everywhere

Regardless of your state, these apply to mobile mechanics nationwide:

• EPA Section 609: you must be certified to service or repair vehicle air-conditioning systems that contain refrigerant.
• Seller's permit / sales tax: most states require one before you can charge customers for parts.
• Business registration: an LLC or sole-proprietor registration, plus an EIN if you hire.
• Consumer-protection & written-estimate laws: many states require a written estimate and authorization before work.

Frequently asked questions

Do you need a license to be a mobile mechanic in Missouri?

Not for general repair. Missouri only requires certification to perform official safety or emissions inspections; general mobile repair is not state-licensed.

How much does a mechanic license cost in Missouri?

There is no state-level licensing fee for general repair in Missouri.

Do mobile mechanics need insurance in Missouri?

Missouri does not require insurance to be licensed, but general liability and garage-keepers coverage are strongly advised and are typically required by fleet clients, apartment complexes, and dealer accounts.

Can you do A/C work as a mobile mechanic in Missouri?

Only if you hold EPA Section 609 certification, which is a federal requirement nationwide. It is a single exam, does not expire, and is required before you handle refrigerant on any vehicle.