(a) A person who possesses an enclosed structure used or operated for public trade and who knows that the structure is infested with rodents shall:
(1) attempt to exterminate the rodents by poisoning, trapping, fumigating, or other appropriate means; and
(2) provide every practical means of eliminating rats in the structure.
(b) A public building that is constructed after September 4, 1945, must incorporate rat-proofing features.
(c) The department shall promote rodent control programs in rat-infested areas and in localities in which typhus fever has appeared.