New U.S. Pet Laws in 2026: What Every Pet Owner Should Know

Bringing a pet home is an exciting moment. There's a little one in the house, needing a name, a bed, a bowl, and lots of love. There is also a responsibility that comes with the fun, that many of the new "parents" to the pet don't consider in the beginning.

It's not just about feeding them, vaccinating them or taking them to the vet when they are sick. As a "pet parent" to an animal in the U.S. there are some legal obligations.

Understanding what is required and how it works can help you avoid undue issues and, more importantly, ensure your pet is adequately protected from identification and licensing through vaccinations and local regulations.

In 2026, some states have new pet laws. Others are enforcing the law that was enacted previously. These rules address the sale of pets, animal abuse, house rules, veterinary, pet insurance and disaster safety. The rules are different in each state.

So, which states have new or updated pet laws? And when did they take effect? Here are some key U.S. pet law changes in 2026.

Effective: January 1, 2026 New law

AB 867 in California came into effect in January 2016. In most cases, it prohibits the removal of the cat's claws. The procedure can only be performed by a vet if it is medically necessary and will benefit the cat's health.

If you live in California, consult your veterinarian about alternatives if you have a cat. These can include nail trimming, soft claw caps, and scratching posts.

Effective: January 1, 2026 New law

As of January 1, 2026, Florida HB 655 has come into effect. It sets new rules on pet insurance. Insurers would need to make clear explanations on coverages, exclusions and payment of claims.

Buyers can withdraw from a new policy within 30 days of purchase.

Check the exclusions and waiting periods before purchasing pet insurance. If the policy is not right for you, use the 30-day right to withdraw.

Effective Date: July 1, 2025 Public Database live from January 1, 2026.

Dexter's Law is Florida's HB 255. It took effect on July 1, 2025. The law toughened the penalties for serious animal cruelty.

Since January 1, 2026, Florida has had a public database of people convicted of certain animal cruelty offenses.

Shelters and rescues can consult the database when they are screening adopters. It can also be used by people who rehome pets on a private basis.

Effective Date: October 1, 2025 New law that will remain in effect through 2026

Trooper's law is the title for Florida's SB 150. It took effect on October 1, 2025.

Leaving a dog unsupervised and unrestrained outside during an emergency declared by the law, such as a hurricane, is a third degree felony.

Make an emergency plan for your pets before storm season. Don't leave a dog chained outside in an emergency.

Effective: March 2026 New law

HB 247 in Ohio is called Avery's Law. It has been implemented since March 2026.

The law imposes more severe regulations following serious attacks by dogs. The dog wardens can take the dog away after an attack. If an owner does not take steps to stop an unprovoked attack, they could be subject to criminal penalties as well.

Euthanasia may be performed when a dog kills or seriously injures a man or woman, after the proper legal procedure.

Make sure to keep your dog on a leash or in a fence. Identify aggressive behaviour and seek assistance as early as possible.

Effective: August 12, 2026 New law

Colorado's HB 26-1183 was signed on May 28, 2026. It took effect on August 12, 2026.

The law continues the state's licensing system for pet-animal facilities. It also modifies a few rules. Civil fines for violations are more severe.

A pet animal certificate of veterinary inspection is also required for some pet animals imported to Colorado.

If you are considering bringing a pet into Colorado for sale or transfer, be sure to read the rules regarding health certificates. If the place you groom, board or buy a dog from is a groomer or boarding or breeding facility, make sure it's licensed.

Signed: April 29, 2026 Pet-store sales ban starts January 1, 2028

Colorado's HB 26-1011 was signed on April 29, 2026. Pet stores will no longer be able to sell dogs or cats as of January 1, 2028. Brokers will also not be able to resell them.

But geneticists may still sell animals. Pet stores may also hold adoption events for a licensed shelter or rescue, provided that they aren't charging an adoption fee.

This ban is not in effect until 2028. Until then, the rules in effect now will remain in place. When purchasing a pet, inquire about the breeder and animal records. You can also consider adoption.

Effective: October 1, 2025 New law set to continue in 2026

The Pet Policy Transparency Act was implemented in Maryland on October 1, 2025.

If the property has a website, landlords are required to outline their pet policy on the site. They must also include the policy or a summary with the rental application.

The policy should include the regulations, including breed and weight restrictions, fees, pet limits, vaccination requirements, etc., and insurance.

Be sure to ask about the pet policy when you submit your application. Have rules and fees written.

Young puppies and kittens: Selling or transferring a dog or cat younger than eight weeks is banned. Selling dogs or cats on roadsides, in parks, at flea markets or other outdoor markets, or in commercial parking lots is also banned.

Declawing is allowed only for a therapeutic purpose under the conditions set by state law.

What it means for you: Don't buy a puppy or kitten from a roadside, parking lot or flea market seller, and don't take one home before it is eight weeks old.

Status: In conference committee Not law yet

Massachusetts has a bigger animal-welfare bill, called the PETS Act. The Senate passed its version on March 19, 2026, and the House passed its own version on July 15, 2026. The two bills differ. The Senate version bans pet-store sales of dogs and cats, but the House version does not include that ban. Lawmakers now have to reconcile the two versions before the bill can go to the governor.

Don't treat this as law yet. Check the Massachusetts Legislature website for the final status.

Pet ownership in the U.S. involves more than food, training and vet visits. State laws also affect how pets are bought, sold, housed, treated and protected.

Some pet laws took effect in 2026, and older laws still apply in several states. Rules can also vary by city and county. Before you buy, sell, rent with or travel with a pet, check your state and local rules. This article is general information, not legal advice.