Even though many restaurants and hotels have signs that allow only guide dogs into their establishment, the Americans with Disabilities Act actually covers all service dogs. This would include dogs who help people with areas of mobility, hearing, seizure detection and mental illness support. Under the ADA, service dog users are not required to carry registration papers for their dogs as service dogs, and the dogs do not have to wear vests. Nevertheless, most service dog users usually carry papers and an outfit for their dog in vests or collars indicating the dogs work.
Besides the accessibility, regular laws also apply to service dogs—same as regular dogs, they have to be on a leash, they must be cleaned up after and they cant be aggressive to other dogs or people.