A proposed California law, Assembly Bill 485, could stop pet stores from selling puppy mills, large-scale commercial dog breeding operations where profit is placed above the well-being of animals.

The bill would prevent stores from selling any dogs, cats, or rabbits that are not from rescue groups or shelters. Pet store owners who violate the bill would be punished with infractions and misdemeanors. They would be guilty of a misdemeanor starting with their third offense.

The projected legislature is gaining support with lawmakers and animal rights groups.

Several local cities, such as Los Angeles and San Francisco, have passed similar bans on their own.

The bill still needs to pass the full legislature.