If a state allows garbage feeding, each producer must obtain a license before feeding any human food waste to their pigs. The licensing process requires the pig producer to demonstrate appropriate cooking and handling of garbage feed for swine.
Requirements
Under the Swine Health Protection Act, owners must be licensed in order to feed their pigs human food waste that contains or has had contact with meat, poultry, or fish. The requirement applies to all garbage collected from food production establishments like restaurants, school cafeterias, and food processing plants.
In order to kill any harmful viruses or bacteria, this food waste must be cooked to 212 degrees Fahrenheit (100ºC) for 30 minutes before feeding it to the pigs. Licensed producers receive routine inspections from APHIS or state employees to make sure that garbage fed to swine undergoes proper cooking and handling to prevent possible disease transmission.
July 2019/ APHIS-USDA/ United States.
https://www.aphis.usda.gov