In addition to all other applicable provisions of the Health and Safety Code and this chapter, mobile food preparation units shall comply with the following safety requirements:
   (a)   Compressors, auxiliary engines, generators, batteries, battery chargers, gas-fueled water heaters and similar equipment shall be installed so as to be accessible only from the outside of the unit.
   (b)   All equipment installed in any part of the unit shall be secured so as to prevent movement during transit and to prevent detachment in the event of a collision or overturn.
   (c)   All equipment installed within the interior of the unit, including the interiors of cabinets or compartments, shall be constructed so as to be free of sharp or jagged edges.
   (d)   All utensils shall be stored so as to prevent their being hurled about in the event of a sudden stop, collision or overturn. A safety knife holder shall be provided to avoid loose storage of knives in cabinets, boxes or slots along counter aisles. Knife holders shall be designed for ease of cleaning and of materials approved by the Health Officer.
   (e)   Ceiling light fixtures shall be recessed or flush-mounted and sealed and equipped with safety covers approved by the Health Officer. The minimum clearance from the floor to the light fixtures shall be at least one hundred eighty-eight centimeters (seventy-six inches) or installed out of the traffic aisle or work area.
   (f)   High voltage (110 volt or higher) electrical wiring shall be properly installed in electrical conduit with all splices or connections being made within junction, outlet or switch boxes as to prevent the need for extension cords exceeding six feet in length. Outside electrical receptacles shall be of waterproof design with covers.
   (g)   Attached, firmly anchored seats with backrests, equipped with seatbelts, shall be provided for all occupants. Jump seats shall fold clear of the aisleway when not in use and be held with a self-latching mechanism. Seats and backrests shall be at least thirty-five and five-tenths centimeters square (fourteen inches by fourteen inches) in size. All occupants shall be seated, shall wear seat belts and shall not cook or prepare food while the unit is in motion. Signs setting forth the latter three requirements shall be posted in both English and Spanish.
   (h)   A first-aid kit approved by the Health officer shall be provided in an enclosed case and located in a convenient, immediately accessible area.
   (i)   All pressure cylinders shall be securely fastened to a rigid structure of the unit. All liquefied petroleum gas (LPG) equipment shall be installed as follows:
   (1)   LP gas tanks and relief valves shall be ASME-approved.
   (2)   Tanks shall be securely fastened and located where not normally subject to damage in a body compartment or underneath the body. The tank or fittings must not protrude beyond the body.
   (3)   Tanks and regulators shall be separated from any open flame by a vapor-tight partition.
   (4)   When tanks are installed in body compartments, the partitions shall be sealed off from the rest of the body with no openings to the interior except for the tubing. The following additional requirements shall be met:
   a.   All tank valves and fittings shall be readily accessible from outside the unit;
   b.   The tank safety relief valve shall be vented to the outside and directed downward;
   c.   The filling of the tank shall be through an outside door;
   d.   The compartment shall be vented to the exterior of the unit to prevent accumulation of gas.
   (5)   Tubing through partitions shall be protected by grommets made of rubber or other approved materials.
   (6)   Tubing exposed to friction shall be protected against chafing.
   (7)   Expansion and contraction bends shall be made in the tubing between the tank and the appliance.
   (8)   ASME-approved LP gas tubing or standard weight pipe shall be used throughout.
   (9)   Protective "thread" caps shall be installed on fill-line check valves.
   (10)   Every appliance fueled by LP gas shall be equipped with a pilot light attachment and provided with an ASME-approved device which will automatically shut off all gas if the pilot light should be extinguished.
   (j)   A minimum 5 B.C.-rated portable fire extinguisher (UL or State Fire Marshal approved design) shall be installed in plain sight and within easy reach, immediately inside the front driver's door. The extinguisher shall be replaced or recharged after each use and at all times be fully charged. (Ord. 5353 § 1 (part); February 2, 1993.)