The Humane Society led the ballot initiative that passed Proposition 12 in 2018 with almost 63% of the vote. Hormel meats said it planned to be compliant by the first of January, while Hatfield plans to be crate-free by December 2022. Tyson says it will come into compliance, but the company’s President and CEO said it was something the company was not excited about in an August earnings call.

Other groups, like the National Pork Producers Council, said the law is unconstitutional and will only drive up prices for consumers in California. Roughly 4-5% of pork producers are compliant with Proposition 12, according to the NPPC, and California consumes about 13% of pork in the United States.

Businesses who don’t comply with the law, and use meat that does not meet the requirements can be fined up to $1,000 and jailed for up to 180 days. The National Pork Producers Council is suing Karen Ross, the Secretary of the California Department of Food and Agriculture. The United States Supreme Court could decide to hear arguments on the appeal of that case as early as Friday.