Disclosure: this guide contains affiliate links. As an Amazon Associate, PetBoo earns from qualifying purchases at no extra cost to you. Safety products change often, so check current test results and the manufacturer’s size and weight limits before buying. Last reviewed October 2026.
⚡ Quick answer
The safest way for a dog to travel is in the back seat or cargo area, secured in a crash-tested crate or a crash-tested car harness. Any restraint is better than none, but many products labeled “crash tested” have never passed independent testing. Look for certification from the nonprofit Center for Pet Safety, choose the right size for your dog, and treat seat covers, hammocks and plain tethers as convenience items, not crash protection.
✅ Key takeaways
- An unrestrained dog can become a projectile in a crash and distract the driver.
- There is no government standard for pet car restraints, so “crash-tested” on a label can be meaningless.
- Choose independently certified products where possible.
- Use a car-specific harness, not a walking harness, and clip it to the seat belt system.
- Back seat is safer than the front seat, where airbags can injure pets.
Dog car restraints compared
What “crash tested” really means
There is no government oversight or safety standard for pet car harnesses. The nonprofit Center for Pet Safety (CPS) developed a test protocol based on child-seat standards and tests products with weighted crash-test dog dummies. In its 2013 harness study, only one of eleven harness brands that claimed crash protection passed all the criteria, and its later certification program has approved only a small number of products. The lesson is simple: ask whether the Center for Pet Safety tested and certified the product, not just whether the label says “tested”. Check the CPS website for its current certified list.
💡 Example: roundups by consumer and veterinary sources often name the Sleepypod Clickit harness line, the Gunner G1 kennel and Diggs carriers as CPS-certified examples. Models and ratings change, so verify the current listing and your dog’s size range before buying.
How to choose: 6 steps
Watch: how pet car restraints are crash tested
This news report visits a facility that crash tests pet restraints with weighted dog dummies. It is included for information only and is not affiliated with PetBoo.
🛒 Shopping shortlist
Affiliate links: as an Amazon Associate, PetBoo earns from qualifying purchases. Always check the product’s size range and certification details.
Car travel safety tips
✅ Do
- Place your dog in the back seat or secured cargo area
- Clip restraints to a harness, not a head or training collar
- Keep a leash and ID tag on in case of an accident
- Take breaks every few hours for water and a toilet stop
- Feed light meals a few hours before long trips
🚫 Don’t
- Let your dog ride on your lap or in the front seat
- Let your dog hang out of windows
- Leave your dog in a parked car, even briefly. See hot weather safety
- Use a simple tether alone as crash protection
- Skip training your dog to get used to the restraint
Help a nervous dog enjoy car rides
- Start with the parked car, then short trips to fun places, not just the vet.
- Offer a chew or lick mat during the ride. See our KONG review for stuffing ideas.
- Keep the car cool, ventilated and quiet.
- For puppies, use a secured crate from day one. See crate training and our crate buying guide.
- If your dog gets carsick or panics, ask your vet for advice. See separation anxiety if distress is linked to being left or confined.
Planning a trip? Read our guide to traveling with your dog and our leash buying guide.
🧠 Quick quiz
Is a “crash-tested” label enough?
No. There is no government standard, so look for independent certification, such as from the Center for Pet Safety.
Where is the safest place for a dog in a car?
In the back seat or cargo area, secured in a crash-tested crate or harness.
Frequently asked questions
What is the safest way to transport a dog in a car?
In the back seat or cargo area using a crash-tested crate, carrier or harness, secured to the vehicle.
Are dog seat belts safe?
Simple seat belt tethers are better than nothing, but they may not keep a dog on the seat in a crash. A car-specific harness that works with the seat belt is a better option.
Can my dog sit in the front seat?
It is not recommended. Airbags are designed for adults and can injure pets, and a dog in the front can distract the driver.
Do I need a booster seat for a small dog?
Not necessarily. If you use one, experts advise combining it with a harness and not attaching it to the vehicle’s seat belt system.
How do I train my dog to wear a car harness?
Let your dog sniff it, reward calm behavior, practice putting it on at home and then take short trips.
Is it illegal to drive with an unrestrained dog?
Laws vary by country and region, and some require pets to be restrained. Check your local rules.
Final thoughts
The best car restraint is one that is independently tested, fits your dog and is used on every trip. Choose a crate or car-specific harness, put your dog in the back, and treat covers and hammocks as extras. For more reading, see the Whole Dog Journal’s guide to dog car safety tools and the Center for Pet Safety’s harness study results.
Related: Need help getting your dog into the car? See our dog ramp vs stairs buying guide.