Do New Jersey have any laws about body guarding?

We are a group of friends that just finished High school. we all thought well may be we can become body guards.( we cant find any jobs due to our Governor.... Christie hahaha...seriously -_-.. So we would like to know if New Jersey have any laws that require you to have some type of certificate to body guard. This is a serious question so if you do have a answer please answer. If you dont please dont be a jacka** and put something stupid. Thank you