What are some government regulations on movie theaters?

For a project I have to find the different ways the government can regulate a fictional business - mine is a movie theater. Does anyone have any links to an agency site?

From The National Association of Theatre Owners, a trade organization):

"Under the Americans With Disabilities Act (ADA), our members must provide wheelchair seating for disabled patrons, assistive listening devices for patrons who are hard of hearing, wheelchair ramps, designated parking spaces, accessible bathroom construction, and many other requirements. Presently, the law does not require captioned films for the deaf or descriptive film technology for the blind. Nonetheless, we have faced several lawsuits from the deaf and the blind in an attempt to reinterpret the laws. To date those lawsuits have been unsuccessful."

movie theaters have to have the emergeny exits marked and they have to have a room capacity