Meat and Poultry Products Traceability and Safety Act of 2003 - Amends the Federal Meat Inspection Act and the Poultry Products Inspection Act, respectively, to direct that cattle, sheep, swine, goats, horses, mules and other equines, and poultry presented for slaughter for human consumption, and the carcasses or parts of carcasses and the meat and food products of those animals, shipped in interstate commerce be identified in a manner that enables the Secretary of Agriculture to trace: (1) each animal to any location at which the animal was held at any time before slaughter; and (2) each carcass or part of a carcass and food product forward from slaughter through processing and distribution to the ultimate consumer.
Authorizes the Secretary to prohibit or restrict entry to a slaughtering establishment of an animal not so identified.
Directs the Secretary to establish a traceability system for all stages of production, processing, and distribution of meat and meat food products and poultry and poultry food products.