The United States (US) Supreme Court has upheld a California law requiring more space for breeding pigs, ruling that a challenge to the law by pork producers was properly dismissed by lower courts. The law, Proposition 12, was passed in 2018 and requires pork sold in the state to come from pigs whose mothers were raised with at least twenty-four square feet of space, with the ability to lie down and turn around. Pork producers argued that the law would force the industry to change its practices and raise the cost of bacon and other pork products nationwide.