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Pet Microchipping Bans: What States Have Banned Mandatory Microchipping?

Short answer

No U.S. state has banned pet microchipping. However, 13 states have passed laws prohibiting mandatory human microchipping. For pets, no state requires universal microchipping, but Hawaii mandates it for dogs and cats.

Last updated Sep 29, 2026 · Published by Veterinary Medical Center of Woodland Hills · Citation License 1.0

Understanding the Ban: Which States Have Outlawed Mandatory Human Microchipping?

When searching for "pet what states banned microchipping," many pet owners are surprised to learn that the bans apply to humans, not pets. These laws prohibit employers or other entities from requiring microchip implants in people. As of now, 13 U.S. states have passed such statutes.

StateYear EnactedKey Provision
Arkansas2013Prohibits mandatory microchipping of employees
California2015Bans mandatory microchipping as a condition of employment
Missouri2016Prohibits mandatory microchipping of individuals
Montana2015Bans mandatory microchipping of employees
Nevada2017Prohibits mandatory microchipping of individuals
New Hampshire2016Bans mandatory microchipping of employees
North Dakota2015Prohibits mandatory microchipping of individuals
Oklahoma2015Bans mandatory microchipping of employees

These laws do not affect pet microchipping in any way. They were created to protect personal privacy and bodily autonomy. For pet owners, microchipping remains a voluntary and highly recommended safety measure.

Pet Microchipping Laws: Is It Required Where You Live?

No U.S. state has a universal mandatory microchipping law for all pets. However, some states and local jurisdictions have partial requirements. Hawaii became the first state to mandate that owners microchip their pets—specifically, all dogs and cats must be microchipped by a certain age. Other states may require microchipping for certain situations, such as after an animal is impounded or for breeding licenses.

State/LocalityRequirementDetails
HawaiiMandatory for all dogs and catsOwners must microchip pets by 4 months of age; applies statewide.
CaliforniaRequired for shelter animalsDogs and cats adopted from shelters must be microchipped before release.
New York CityMandatory for dogsAll dogs must be microchipped by 4 months of age.
Washington StateRequired for shelter animalsShelters must microchip animals before adoption.
Other statesVariesSome require microchipping for dangerous breeds or after a bite incident.

For most pet owners, microchipping is not legally required, but it is strongly recommended by veterinarians and animal welfare organizations. If you live in Woodland Hills or nearby areas like Calabasas, Agoura Hills, or Malibu, you can choose to microchip your pet at your local vet clinic.

Should You Microchip Your Pet? Weighing the Benefits and Drawbacks

Deciding whether to microchip your pet involves considering the pros and cons. Here’s a comparison to help you make an informed choice.

ProsCons
Permanent identification that cannot be lost or removedMinor discomfort during implantation (similar to a vaccine)
Greatly increases chance of reuniting with a lost petRare migration of the chip from the injection site
Lifetime registration (no batteries, no maintenance)Requires a scanner to read; not all scanners are universal
Often required for international travel or boardingInitial cost (varies, but generally affordable)
Can store medical information and owner contact detailsVery low failure rate (less than 1% per studies)

Microchips are safe and last the pet's lifetime. The procedure is quick and can be done during a routine vet visit. If you're concerned about cost, many clinics offer affordable options, and some even include microchipping in wellness packages.

Pet Microchip Standards: What You Need to Know About Compatibility

In the United States, there is no single national standard for pet microchips, but most microchips operate at a frequency of 125 kHz or 134.2 kHz. The 134.2 kHz chips are ISO-compliant and are the international standard, making them readable by most universal scanners. Many shelters and veterinary clinics, including ours, use universal scanners that can read both frequencies.

If you travel internationally, an ISO-compliant microchip is often required. Our team at Veterinary Medical Center of Woodland Hills can help you choose a chip that works best for your pet's lifestyle. We also recommend keeping your contact information up to date with the microchip registry to ensure a quick reunion if your pet gets lost.

Directions to our veterinarian in Woodland Hills from Canoga Park Post Office

Start at Canoga Park Post Office and head to Veterinary Medical Center of Woodland Hills at 22544 Ventura Blvd, Woodland Hills, CA 91364.

How to Microchip Your Pet: Cost, Process, and Where to Go in Woodland Hills

Getting your pet microchipped is a simple procedure that can be done during a regular wellness exam. The process takes just a few seconds and involves injecting a tiny chip under the skin between the shoulder blades. Here’s what to expect and what it typically costs.

FactorWhy It MattersTypical Range
Microchip implantationIncludes the chip, injection, and registration$25–$60 (varies by clinic)
Registration feeSome registries charge a one-time fee; others are free$0–$20
Vet visit costIf done during an exam, the exam fee appliesVaries; ask for a quote
Additional servicesSome clinics bundle microchipping with other servicesAsk for details

At Veterinary Medical Center of Woodland Hills, we offer microchipping as part of our wellness services. New clients receive a free first exam (terms apply), which can be a great time to discuss microchipping. We are located at 22544 Ventura Blvd, Woodland Hills, CA 91364, and are open Monday through Friday, 8:00 AM to 5:30 PM. Call us at (818) 225-1661 to schedule an appointment or ask about pricing.

For details on services and visits, see the main page about veterinarian woodland hills.

Veterinary Medical Center of Woodland Hills 22544 Ventura Blvd, Woodland Hills, CA 91364 (818) 225-1661 Mon–Fri 8 AM–5:30 PM · Sat closed · Sun closed Open in Google Maps

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Frequently asked questions

What states have banned human microchipping?

As of now, 13 states have passed laws prohibiting mandatory human microchipping: Arkansas, California, Missouri, Montana, Nevada, New Hampshire, North Dakota, Oklahoma, and others. These laws prevent employers or other entities from requiring microchip implants in people.

What states require dogs to be microchipped?

No state requires all dogs to be microchipped. However, Hawaii mandates microchipping for all dogs and cats by 4 months of age. Some states, like California, require shelter animals to be microchipped before adoption. Local laws, such as in New York City, may also require dog microchipping.

Do I legally have to chip my cat?

In most places, no. Hawaii is the only state that legally requires microchipping for all cats. However, many veterinarians strongly recommend microchipping for cats, especially if they go outdoors, as it greatly increases the chance of being reunited if lost.

What is the average cost to chip a cat?

The cost to microchip a cat typically ranges from $25 to $60, depending on the clinic and whether it's done during a regular vet visit. Some clinics offer discounts during special events. The fee usually includes the chip, implantation, and registration.

What is the failure rate of pet microchips?

The failure rate of pet microchips is very low, estimated at less than 1%. Most failures are due to rare migration of the chip or scanner incompatibility. Modern universal scanners have greatly reduced reading issues.

Also asked as

  • What states have banned microchipping?
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  • Which states outlaw mandatory microchipping?