The central question in the 2026 Farm Bill negotiations is whether Congress will override state-level livestock-production rules such as California's Proposition 12. The 2018 voter-approved law requires pork, veal and eggs sold in the state to come from animals raised under specified minimum-space requirements. House lawmakers have included a preemption provision, while Senate Agriculture Committee negotiators left it out.
The dispute follows a legal challenge that pork producers lost at the U.S. Supreme Court. The court rejected the industry's challenge to Proposition 12 but left open the possibility that Congress could establish a federal standard for livestock conditions, according to Spectrum News. The 2023 decision, issued 5-4 with Justice Neil Gorsuch writing for the majority, held that states retain constitutional authority to regulate products sold within their borders, according to Ballotpedia. The National Pork Producers Council has since urged Congress to establish a federal livestock standard that would displace state rules such as California's.
That lobbying effort found traction in the House, which passed the Farm, Food, and National Security Act of 2026 by a 224-200 vote in April, incorporating Section 12006, known as the Save Our Bacon Act, according to National Hog Farmer. The provision would allow California to keep enforcing Proposition 12 within its own borders but would prohibit states from directly or indirectly enacting or enforcing livestock-production standards that reach beyond state lines, per the same Spectrum News report. House Agriculture Committee Chair Glen Thompson called the measure a balanced approach.
The compliance burden for out-of-state farms
The potential cost is illustrated by Trish Cook, an Iowa pork producer who has farmed for more than three decades. Spectrum News reported that converting her facilities to meet Proposition 12's space requirements would cost more than $1 million and that her farm currently cannot sell pork in California. The law requires breeding sows to have at least 24 square feet of usable floor space in open enclosures, compared with roughly 14 square feet in traditional gestation crates, according to National Hog Farmer.
Iowa has more pigs than people, and hog farming is a significant part of its economy, according to the Spectrum News account. The industry is not uniform in its position: USDA data submitted to Congress in July 2025 found that about 27% of U.S. pork producers had made capital investments or were actively converting facilities to comply with Proposition 12, according to Farm Policy News. Those producers could lose a compliance-based advantage if a federal law eliminates the need for the standard.
Senate Strips Out the Preemption Clause
The Senate Agriculture Committee has taken the opposite approach. Its version of the Farm Bill omits the Proposition 12 preemption language found in the House bill. The committee advanced its draft 12-11 in September, according to The New Lede. Senator Joni Ernst had planned to offer language restricting Proposition 12's reach, but the committee moved the bill forward without the Save Our Bacon Act provision, according to the Spectrum News report.
Senator Chuck Grassley said Congress has discussed the Farm Bill for three years. Congress has not enacted a comprehensive agriculture package since September 30, 2023, and a full Senate floor vote on the current agriculture package has not been scheduled. If the Senate passes its version without the House provision, negotiators will have to reconcile the two bills and secure final approval before Congress could change Proposition 12's reach.
What the two Farm Bill versions would do
Section 12006 would not repeal Proposition 12 inside California. Instead, the House language would allow California to continue enforcing its requirements while preventing states from imposing or enforcing livestock-production standards that regulate production beyond their borders. The broader Farm Bill remains an overdue legislative vehicle: according to the Congressional Research Service, the 2018 farm bill expired in 2023 and has been extended three times, most recently in November 2025 to cover fiscal year 2026. The Senate Agriculture Committee's version does not contain that preemption language. As a result, the Senate draft would leave Proposition 12 and similar state rules in place unless negotiators add a restriction during the next stage of the process, while the House bill would establish the interstate limits sought by pork producers.
The Price Tag for California Shoppers
The economic effects of Proposition 12 have also become part of the debate. USDA Economic Research Service data published in July 2025 showed that retail pork prices in California rose 20% on average after the law's full implementation in January 2024, with some cuts, including pork loins, increasing as much as 41%, according to Farm Policy News. A separate USDA economic analysis found that low-income California families reduced pork purchases by 22%, while statewide pork-consumption volume declined 15%, according to an Agricultural & Applied Economics Association white paper.
The price pressure reflects California's position in the national market. The state accounts for about 13% to 15% of U.S. domestic pork consumption but produces less than 1% of the nation's supply, meaning it depends on out-of-state farms for 99.8% of the pork consumed by its residents, according to a report published on PubMed Central. That dependence is why a California sales rule can affect farm investment decisions far beyond the state.
Legal Scholars Warn of Wider Fallout
The proposed federal approach has drawn broader legal objections. A review by Harvard Law School's Brooks McCormick Jr. Animal Law and Policy Program estimated that Section 12006 could threaten or invalidate more than 600 state and local laws involving public health, food safety and animal welfare, according to the Animal Legal Defense Fund.
Proposition 12 is not the only state law potentially affected. Massachusetts voters approved Question 3 in 2016, requiring 24 square feet of usable space for breeding sows and barring the sale of noncompliant pork in the state; that law also would be preempted under the proposed federal fix, according to Investigate Midwest. Because the House and Senate drafts take different positions on preemption, the outcome will depend on negotiations and a final congressional vote.
