Right now, to my knowledge, the only ones that need a license are pet stores and people that sell to labs (for rabbits, mice, etc...dogs you need a kennel license after a certain number of dogs). However! There IS a current bill ammendment in the works, that concerns ALL animal owner/breeders! They are currently trying to charge everyone that raises/breeds ANY animal to pay a yearly licensing fee. If you have more than 3 animals, you'll need a license. And it's not cheap. The bill stated $750 for any breeder of mice, rabbits, guinea pigs, horses, etc that house 3 or more animals.
The kicker? They will no longer require licensing for "retail pet stores." Their reasoning is because the pet stores are monitored by the public and private folks aren't.
It's a bunch of ********, and we ALL need to make our voices heard. This bill is up for vote in the beginning of July.