(a) Pet food ingredients used to manufacture a processed pet food shall be sound, clean, and wholesome and shall conform to the provisions of the California Pure Pet Food Act of 1969.

(b) All stomachs, intestines, and/or other such by-products, which are used in the manufacture of processed pet food, shall be thoroughly washed and inspected for fecal or foreign contamination.

(c) Meat meal, meat and bone meal, meat scraps, and other similar meat products may be used only if they have been produced in a plant approved by a federal, state, or municipal inspection agency.

(d) All processed pet food packed in hermetically sealed containers shall be processed in such a manner as to achieve commercial sterility in all units packed.

(e) All processed pet food not packed in hermetically sealed containers shall be processed so as to render the product free of salmonella, or other pathogenic microorganisms which are transmissible to man or animal.