The enforcement phase of animal confinement laws, Proposition 12 in California and Question 3 in Massachusetts, is beginning, requiring breeding pigs to have a minimum of 24 square feet of usable floor space. The laws apply to all uncooked whole pork meat and could disrupt the supply chain, especially in New England. Legal challenges are ongoing, and similar legislation has been adopted in New Jersey. Meanwhile, US Agriculture Secretary Tom Vilsack has expressed concerns about the political feasibility of such regulations, linking them to increased animal mortality due to overcrowding and fighting.