If a food service establishment has 20 or more seats and opened after 1977, it must provide a toilet for its customers. All other food service establishments are exempt from this requirement.

Food establishments are not required to allow public access to their employee toilets.  Customers are not permitted to walk through the kitchen or any food storage or preparation area to get to the bathroom.

You can report no toilets for customers in a restaurant that is required to provide toilet facilities.

Report no toilets for customers in a restaurant with 20 or more seats established after 1977.