Yes dank, there are. It depends on the type of business (some businesses aren't required to have toilets which are open to the public), and the rules will vary by location. So will the rules regarding food and beverages. If food - even pre-packaged food - is being consumed on the premises, your city may have specific rules in relation to that. We don't know the specific rules for your city which relate to indoor smoking venues or businesses where people consume food. You'll have to check those for yourself.
There are often specific rules about how toilets open to the public must be cleaned (both how often and using what types of products) as quite a few diseases can be spread by the oral-faecal route - ie, someone with diarrhoea uses the toilet and doesn't wash their hands properly. They then transmit whatever virus they have to the doorknob, which is touched by other people when they leave the toilet. Both the original offender and those other people are then going to be putting their fingers on the hookah mouthpieces. Rotavirus or C. diff outbreak ensues.
While your exact local regulations may vary, here's a list stuff a hookah lounge in Nevada got busted for. I've left out the food service stuff.
- Toilet facilities for employees inadequate, inconvenient, unclean and/or not in good repair. Covered trash cans not provided. Doors not self-closing.
- Unsuitable hand washing facilities, unclean, inaccessible and/or not in good repair, with unapproved soap, towels and/or waste receptacles not provided.
- Facilities for washing and sanitizing equipment and utensils unapproved, inadequate, improperly constructed, maintained and/or operated.
- Unclean wiping cloths, stored in an unapproved sanitizer, and/or unrestricted in use.
- Non-food contact surfaces and/or cooking devices not maintained and/or unclean.
- Improper lighting and/or ventilation, ventilation hoods and/or filters improperly cleaned and/or maintained.
- Plumbing and/or fixtures improperly sized, installed and/or maintained. Plumbing and/or fixtures improperly drained.
- Floors, walls, ceilings, improperly constructed and/or installed. Not in good repair and/or clean
http://www.city-data.com/las-vegas-restaurants/Tangerine-Hookah-Lounge.html#ixzz274tqVn3j
I also had a quick look at hookah lounges and bars for sale. Even with other income streams attached, I couldn't find one claiming a revenue of more than $180,000. Their profit was listed as being in the low 80k range, but then you have to take tax into account (and repayment to lenders).