Vehicle refrigeration lisence?

[Aerovox]

Does anyone know what is required other then an EPA 608 and 609 certification to charge people to work on their vehicle refrigeration systems? I would think some kind of business license would be required but can't find anything on Google. Thanks guys, hope everyone's enjoying the cooler weather

[supertek65]

In 30 years i have fixed more automotive airconditioners than comfort cooling!

If you are going to advertise you should get a local business license.

[Aerovox]

Thanks, I checked with the county and got all the paperwork to fill out. I appreciate the help.

One more question, for progression to residential work in the future a contractors and masters lisence is necessary right? Not just a journeymans? Does a journeyman's lisence enable you to do any work or is it just a stepping stone to the masters?