(a) Employee entrance doors to food preparation areas shall
be self-closing and kept closed when not in use.
(b) The mobile food facility, and all equipment and utensils shall
be protected from potential contamination, and kept clean, in good
repair, and free of vermin.
(c) During transportation, storage, and operation of a mobile food
facility, food, food-contact surfaces, and utensils shall be
protected from contamination.
(d) The permitholder of an unenclosed mobile food facility
handling nonprepackaged food shall develop and follow written
operational procedures for food handling and the cleaning and
sanitizing of food-contact surfaces and utensils. The enforcement
agency shall review and approve the procedures prior to
implementation and an approved copy shall be kept on the mobile food
facility during periods of operation.