Ill. Gov. Pat Quinn has signed legislation to protect consumers who buy a dog or cat and then learn the animal is seriously ill.
The Chicago Democrat signed the so-called "puppy lemon law" Saturday morning at a popular Chicago dog park called Wiggly Field.
The measure allows buyers to get a full refund or replacement if they buy a pet from a store and it dies within 21 days. Pet owners also could be reimbursed for the cost of veterinary care if they keep the animal.
It also requires pet stores to report any outbreak of diseases to the state.
Opponents said the bill was too far-reaching and anti-business. But supporters, including the Humane Society, said it will protect consumers and animals.
The law takes effect Jan. 1.