Call your local municipality and find out if they offer the test...some do out here. If they don't ask them what license is accepted to work in the town.
It's complicated here in Chicago. They have adopted there own code and you must have their license if you want to work in the City. In the Suburbs surrounding the city is much different. All of them accept the Chicago and NEC license...but some don't recognize where you obtained the NEC license. It's confusing, I know...
I would contact or join IAEI and talk to a local inspector on where to take the test. They are a wealth of information and would help you throughout your career. I have been a member for years.
IAEI (International Association of Electrical Inspectors)
www.iaei.org