Mobile mechanics may need state auto repair registration, local business licenses in each city where they work, EPA Section 609 certification for any AC refrigerant work, and must follow rules on fluid handling and stormwater, because spilled oil and coolant can reach storm drains. Commercial auto and liability insurance are standard.
Who to ask and what to ask
| Office | Question |
|---|---|
| State consumer protection or DMV | Do mobile repair businesses register, and what estimate rules apply? |
| City business licensing | Do I need a license in each city I serve? |
| Local stormwater program | What rules apply to fluid spills on streets and driveways? |
| State environmental agency | How do I dispose of used oil and parts? |
| Insurance agent | Is customer vehicle coverage included? |
Spill prevention routine
Before starting, place a drip mat or catch pan under the work area. Keep absorbent and a spill kit in the van, collect used fluids in sealed containers, and bring old parts and fluids back for recycling. EPA's stormwater program explains why fluids must not reach storm drains, and local rules may set specific requirements.
Mistakes that cause problems
- Draining fluids into the street or yard
- Doing AC work without 609 certification
- Working in cities where you lack a business license
- No written estimates where the state requires them
Mistakes
- Assuming mobile work is exempt from repair laws
- No written estimate process
- Unlicensed in cities that require it
Rules owners often miss
Keep copies of estimates and authorizations as your state requires; mobile businesses are often held to the same records rules as shops.
What to research
| Requirement | Usually handled by |
|---|---|
| Business license | City or county |
| Auto repair registration (some states) | State agency |
| Rules on working in streets, lots and HOAs | Local codes and property rules |
| Fluid disposal rules | State environmental agency |
Free tools
Common questions
Can I recharge AC on site?
Only with EPA 609 certification and approved recovery equipment.
Where do I dispose of used oil?
At licensed recyclers or many parts stores that accept it; check local options.
Do I need a license in every city?
Some cities require it if you do business there. Check each city you serve.
Do written estimate rules apply to mobile work?
In states with auto repair laws, they often do.
Do I need a hazardous waste ID?
Small quantities from mobile repair usually go to recyclers; ask your state environmental agency about requirements.
Should I keep estimate records?
Yes; states with auto repair laws often require keeping copies.
Do I need to post my registration on the website?
Some states require registration numbers on ads; check your rules.
Sources
- SBA: Apply for licenses and permits
- EPA: Motor vehicle air conditioning (Section 609)
- EPA: NPDES stormwater program
- FTC: Auto repair basics
Sources checked October 6, 2026. Rules, fees and forms change; confirm details with the agency or provider before you act. This guide is general information, not legal, tax or insurance advice.
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