California’s proposition 12 has survived a challenge because the Supreme Court has declined to hear an appeal filed by Iowa.
The law sets minimum housing standards, including a ban on sow gestation stalls.
While the law applies in California, it has nation-wide and international impact because all meat and poultry marketed in California must comply.
Meat packers don’t want to have separate supply chains for California so require suppliers to comply with proposition 12 standards.
That includes pigs and pork from Canada.
