In Wisconsin, food waste distributed as animal feed is required to be labeled and the distributor needs a feed license. If interested, I can provide more info or connect you with our Feed program specialists.

We are seeing an increase in single stream food products looking to be used as livestock feed or as a “soil amendment”. What we are hearing about is all pre-consumer. (Salad dressing waste, fruits and vegetable that aren’t Grade A, processed foods that don’t meet standards, fish bones and heads) We don’t have any rules or guidelines for this as long as it can be a “beneficial reuse” under waste management. We see some instances of people spreading food waste on their fields to disk in later. WE would have them apply for a land farming permit unless it has a specific agronomist component. Reference website attached.

Maine allows the feeding of food waste to swine. See: https://www.chlpi.org/wp-content/uploads/2013/12/AnimalFeed-MEFactsHarvard.pdf
Additionally, a recent laws schools to provide food waste to farmers without liability.