Though the number varies by the environmental setting, the Occupational Safety and Health Administration requires businesses to have one bathroom for up to 15 members of the same sex. Larger groups require additional toilets.
The Occupational Safety and Health Administration regulates the availability of toilet facilities in the workplace to protect employees from suffering adverse affects from a toilet being unavailable when needed. The Administration has developed a standard for the number of same-sex employees required per number of toilets. This standard, which applies to the general workplace setting, seeks to insure adequate, timely access to toilet facilities for all workers. Mobile workers must have transportation immediately available to nearby toilet facilities.