If you sell food to the public you need to be health department inspected in all States. Otherwise you are breaking the law. As well there are usually state taxes if take out food is taxed in your State and there may be vendors permits required from the town/city/etc.
You may find some exceptions for charity fund raisers to some of the items I mentioned but usually the HD requires something except here in FL and even then it's by county. At Naples they inspected vendors.
Owner/Head Cook/Chief Bottle Washer for Great Lakes BBQ & Feed Competition BBQ Team
FBA Member, KCBS Member & KCBS Certified BBQ Judge
Spicewine medium, weber kettle, gas grill