Okla. Stat. tit. 63, § 63-1-1129: Water supply - Toilet facilities

Locker plants shall have an ample water supply approved by the

State Commissioner of Health. Locker plants or branch locker plants

shall be provided with adequate toilets so located as to be readily

accessible to employees and equipped with adequate hand washing

fixtures or facilities, supplied with hot and cold water under

pressure, soap and approved towel service. The doors of all toilet

rooms shall be full length and self-closing and no toilet room shall

open directly into any room in which foods are prepared, processed,

chilled, frozen or stored. Toilet facilities and rooms shall be

kept in a clean and sanitary condition.