Okla. Admin. Code § 35:37-11-33
All operation and storage rooms and departments of official establishments used for inedible materials shall be maintained in acceptably clean condition. The outer premises of every official establishment, including docks and areas where cars and vehicles are loaded, and the driveways, approaches, yards, pens, and alleys, shall be of acceptable dust free all weather construction, adequately drained and kept in a clean and orderly condition. All catch basins on the premises shall be of such construction and location, and shall be given attention, as will insure their being kept in acceptable condition as regarding odor and cleanliness. Catch basins shall not be located in departments where any product is prepared, handled, or stored. The accumulation on the premises of official establishments of any material in which flies may breed, such as hair, bones, paunch contents, or manure, is forbidden. Other conditions that may result in adulteration of product or interfere with inspection shall not be allowed in any official establishment or on its premises.
Okla. Admin. Code § 35:37-11-33