California Code, Health and Safety Code - HSC § 111000

(a) Filter beds and any filtering equipment shall be designed to protect ice from contamination and shall be subject to periodic treatment and cleaning.

(b) All equipment and utensils used in ice production areas shall be of easily cleanable construction, shall be kept clean and in good repair, and shall be handled and stored in a sanitary manner. Materials used as ice contact surfaces shall be smooth, nontoxic, and nonabsorbent. Ice cans shall be leakproof and the inner surfaces of the containers shall be free of corrosion.

(c) Freezing tank covers shall be designed and constructed to protect ice containers from splash, drip, and other contamination, shall be easily cleanable, and shall be kept clean and in good repair. The covers shall be equipped with rings or similar devices when hooks are used for pulling. Can or tank covers, and the ledges or sides of the tank upon which the cover rests, shall be cleaned as often as necessary to keep them in a sanitary condition.

(d) Conveyor surfaces shall be of impervious material and shall protect ice from contaminants that may result from shredding, flaking, peeling, or fragmentation of the conveyor surface.

(e) Equipment lubrication shall not contaminate the ice and only food grade lubricants shall be used.

(f) All product storage and holding areas to be refrigerated shall be cleaned as often as necessary to keep them free of contamination.

(g) Air used for water agitation shall be filtered or otherwise treated to remove dust, dirt, insects, and extraneous material. Filters shall be placed upstream from the compressor and shall be easily removable for cleaning or replacement.

(h) The compressor or blower used to supply air or water agitation shall be designed to deliver oil-free air.

(i) Air lines and core or vacuum devices shall be used as needed to produce ice free of rust or other foreign materials.