Colorado lawmakers have advanced a significant bill aimed at ending the retail sale of dogs and cats in pet stores across the state. The proposal cleared its final major legislative hurdle on Monday, March 30, when the Senate approved it by a vote of 19-16.

Legislative Path to Implementation

The bill is now scheduled to return to the House of Representatives. This step is necessary for the House to approve a recent amendment that adjusts the implementation timeline. If the amendment is accepted, the measure will proceed to Governor Jared Polis for final review.

Should Governor Polis sign the legislation, the ban is slated to officially take effect on January 1, 2028. This date reflects a six-month extension pushed back by the recent amendment.

Targeting Puppy Mills and Overpopulation

Proponents argue that the legislation is crucial for addressing animal overpopulation and cutting off supply chains linked to inhumane breeding operations. State Senator Dylan Roberts, a bill sponsor, stated during the Senate debate, “This bill is about trying to make sure that the dogs and cats in our state have homes.”

Senator Roberts directly linked retail sales to the problem, noting, “One of the reasons why we have an overpopulation issue is because of the direct sale of puppies at retail stores. Those puppies are primarily sourced from what you would know to be a puppy mill.”

The Role of Commercial Breeders

Pet stores traditionally acquire animals from high-volume commercial breeders. This system often serves as an opaque channel for puppy mills, allowing them to sell animals without exposing the public to their poor living conditions.

State Representative Karen McCormick, another sponsor, emphasized the resulting animal welfare crisis. “As a veterinarian, I’ve been a direct witness to the consequences of the puppy mill supply of dogs across multiple states,” she said in January.

Rep. McCormick added that these animals frequently suffer from physical and behavioral health issues due to inhumane breeding. She noted that unsuspecting buyers often absorb the significant financial burden of necessary medical treatments.

Local Context and Precedent

The push for a statewide ban follows significant local action. Denver recently banned dog and cat sales in pet stores in September, inspired partly by news that the controversial national chain Petland was considering opening a Colorado location.

Seven other states have enacted similar statewide prohibitions. Furthermore, over two dozen Colorado municipalities, including Aurora and Fort Collins, have already banned the retail sale of these animals.

Opposition and Economic Concerns

The proposed HB 1011 would effectively prevent operations like Petland from establishing a retail presence in Colorado. However, the measure also impacts smaller, established local shops.

Margaret Richards, owner of Pet Paradise in Pueblo since 1974, testified against the bill, arguing it would unfairly harm her business and employees. “You do not survive five decades in this industry by doing things the wrong way,” she stated, asserting that selling sick animals would have led to closure long ago.

Concerns Over Unintended Consequences

Critics of the ban raised concerns that prohibiting legal retail sales could drive the trade underground. Opponents cited a 2024 report suggesting California’s ban pushed the “puppy trade further underground,” resulting in a “network of resellers — including ex-cons and schemers.”

Some legislators argued that holding legitimate businesses accountable is misplaced. Senator Larry Liston questioned the precedent, asking, “If we can go after a legitimate business that has done everything correctly... what kind of business is going to be next?” He drew a parallel to potential future restrictions on other industries, such as firearms dealers.

Consumer Fraud and Activist Support

Proponents countered that the issue is not victimless, citing widespread consumer fraud. Fort Collins resident Cara Thorsen shared her experience of purchasing a sick dog from a pet store, which spurred her activism.

Thorsen described finding a “clear and consistent pattern of consumer fraud,” where customers were assured puppies were healthy and locally sourced, only to face emergency vet bills later. Supporters included duped pet buyers, independent breeders, and rescue operators.

Exemptions and Final Steps

The ban specifically exempts animal rescues, shelters, and breeders selling directly to the public. It also includes exceptions for service animals, law enforcement animals, and hunting dogs.

Pet owners may still sell their animals privately, though the bill limits individuals to selling a dog or cat no more than three times annually. Governor Polis has ten days upon receiving the bill to sign it into law, veto it, or allow it to become law without his signature.