Okla. Stat. tit. 63, § 63-1-1127: Construction of plant - Equipment

(a) The floors, walls, and ceilings of locker plants and branch

locker plants, including all food processing rooms, slaughtering

facilities, and similar items, shall be of such construction and

finish that they can be conveniently maintained in a clean and

sanitary condition. Walls and ceilings shall be well painted or

finished in some other approved manner and shall be refinished as

often as necessary. Washing facilities including hot and cold water

shall be provided for proper cleansing of utensils and equipment.

The lockers in any plant shall be so constructed as to protect the

contents from contamination, deterioration, or injury. Lockers with

perforated bottoms shall be provided with a suitable unperforated

liner or tray.

(b) Any plant using a toxic gas refrigerant shall have at least

one gas mask of a type approved by the State Commissioner of Health

and shall keep the same where it will be readily accessible.