NEW ORLEANS - MAY 30: Homeless kittens look up from the cage at Animal Rescue New Orleans headquarters May 30, 2007 in New Orleans, Louisiana. The grass-roots group shelters animals that were left behind following Hurricane Katrina or have been separated from their owners. According to the LA/SPCA about 104,000 pets were left behind after the storm and 88,700 pets are still unaccounted for. (Photo by Mario Tama/Getty Images)

In a move aimed at shutting down ‘puppy mills’, California is banning the sale of commercially bred cats, dogs, and rabbits.

The new law went into effect on Jan. 1st, requiring pet stores to stick with carrying rescue animals from local shelters.

So-called ‘puppy mills’ often mistreat animals, forcing parents to keep breeding while the babies are often neglected before being shipped off.

The Humane Society praised the move as a ‘big step’ towards ‘the day when puppy mills have nowhere left to sell’.