Do I need a 'breeders license'?

I am a noob when it comes to professional reptile breeding but I would love to learn more!
But anyway, I am wondering what are the qualifications for a 'breeders license'? Am I required to have one if I breed something that doesn't have any restrictions like, leopard geckos? What if I'm under 18 and I want to breed and sell reptiles?
These my seem like breeders license FAQ, but i was wondering if this great forum could answer some of my questions.

Unless the laws in your state are different, there is no need to have any kind of license to breed or sell. Some states require a special tax ID number if you sell at a reptile show there (like NY) but you have to check out the laws in your own state.

Aliza

I've never seen anything about needing a license in IL for breeding. I don't have one. And there are no permits or licenses required to vend unless it's changed in the past year or so since I looked it up. Things have been changing in IL lately, but mostly good changes.

This is a link to the requirements of the twice monthly show in Wheaton. All Animal Expo Sellers Info