Here in Maryland in order to pull permits you need a masters license in the county you need the permit in. You can take each counties test or take the state test. When you have a Maryland State license, you can just apply for each county. Thats all the state license does , it allows you to pick up the counties without testing again and again. Some counties (2) are starting to require a journeyman's license or a masters to work in their county.
So as for totals:
2 State Masters License's ( limited and Unlimited)
23 county Master License
2 county Journeyman's license
1 Inspectors license