The department shall have the authority and the duty to cause the sanitary and safe disposal of dead domestic animals, domestic animal products and domestic animal parts, tissues, excrement and other wastes to prevent the spread of transmissible diseases or dangerous transmissible diseases or the spread of contamination by hazardous substances. This subchapter shall not apply to the disposal of carcasses of domestic animals slaughtered for human food nor to the premises or the rendering operations on the premises of a licensed slaughter establishment subject to official Federal or State inspection, provided that such inspection includes inspection of the rendering operations.