9 C.F.R. § 315.2
Carcasses and parts passed for cooking; utilization for food purposes after cooking
Carcasses and parts passed for cooking may be used for the preparation of meat food products, provided all such carcasses or parts are heated to a temperature not lower than 170 °F. for a period of not less than 30 minutes either before being used in or during the preparation of the finished product.