City and county governments can create their own laws and regulations, as well as requiring special licenses and permits for the operation of certain businesses. You can find more information by going to the websites for the county and cities that the business will operate in.
It can be hard to tell what agencies or associations may have regulations or guidelines for your product. You can use Google to try to make your life a bit easier. However, instead of a standard Google keyword search, try the following:
This example would look for your keyword only on websites that end with .gov. You can also limit to specific sites by searching
Play around with keywords
If you aren't finding anything related to your topic, think about changing your keywords, such as using synonyms or broad terms.
Instead of crackers, try snack, for example