Prohibits any person, corporation, association, or other entity from slaughtering a horse where such person, corporation, association, or other entity knows or has reason to know that such horse will be used for human or animal consumption; prohibits any person, corporation, association, or other entity from possessing, selling, importing, etc., a horse or horseflesh if such person, corporation, association, or other entity knows or should have known that any part of such horse or horseflesh will be used for human or animal consumption; provides penalties for violation.