I am looking for some help? I live in Oregon and I want to advertize Ground squirrels and Rock Chuck nuisance control for farmers. Both are non pertected rodents. My Q is can I do this for a fee with out any type of Lic. or Insurence?

I suggest you contact your state fish and wildlife dept. for the legal issues. From a professional aspect you should have insurance, be trained and licensed for any wildlife work. I am also a strong supporter of licensing and testing as well as continuing education for every state. This has evolved into a major industry and we need to keep it professional.
My view from cheap seats.
Don LaFountain

Call ODA, if you are trapping you might not need their test and license.
They have a vertebrate pest license. Think it was $100.00 in 2005 when I had to take it.
They can tell you whether you need it or not.

ODFW of course isn't helpful for the species you mentioned.

Justin

Thank you Don and Justin, I am a long time Lic. trapper and also a Lic. and Ins. contractor. I would like to do some ADC work but I was just making sure that I started out in the right direction.

Thanks
Clinton

Justin is right. If you plan on trapping only, you shouldn't need a license. If you're going to be using any pesticides, you'd need to have the ODA license: http://www.oregon.gov/ODA/PEST/docs/pdf/2013%20Licensing%20Guide.pdf. If you plan on doing other nuisance trapping; raccoons, skunks, beaver, etc., you'd need to get a WCO license from the ODFW: http://www.dfw.state.or.us/wildlife/license_permits_apps/wildlife_control_operators.asp.