Car rides are one of the most routine parts of dog ownership, and also one of the most overlooked safety gaps. For the broader picture across every safety category, see Dog Safety: The Complete Guide.
The Real Numbers Behind Car Restraint
According to AAA and Kurgo’s joint research, an unrestrained 10-pound dog in a crash at just 30 mph becomes the equivalent of a 300-pound projectile, while an unrestrained 80-pound dog can exert roughly 2,400 pounds of force.
The same research found that around 80 percent of dog owners drive with their dog at least occasionally, yet only about 16 to 17 percent use any form of restraint. AAA survey data also shows that roughly 3 in 10 dog owners admit to being distracted by their dog while driving, most often from petting them, letting them sit in a lap, or moving between seats.
An unrestrained dog isn’t just a risk in a crash. It’s a distraction risk on every ordinary drive.
“Crash Tested” Doesn’t Always Mean What It Sounds Like
There’s no government safety standard for pet car restraints, unlike child car seats. This has left a lot of room for marketing language that sounds reassuring without meaning much.
The Center for Pet Safety (CPS), an independent nonprofit, runs the closest thing to a real standard in the US. Its testing replicates FMVSS 213, the same federal crash test protocol used for child safety seats, at a simulated 30 mph impact.
In its landmark 2013 study, CPS tested 11 harness brands that all claimed some form of crash protection. Only one, the Sleepypod Clickit Utility, passed. The rest failed to keep the test dog on the seat, exceeded safe head excursion limits, or had hardware that failed under load.
Look specifically for the “CPS Certified” designation, not just the phrase “crash tested,” when choosing a harness, crate, or carrier. CPS publishes its current list of certified products and their star ratings directly on its site.
Harnesses vs Crates vs Carriers
A crash-tested harness clips into the seatbelt system and works well for a dog that’s comfortable riding upright. Look for a tether of 6 inches or less, since CPS testing found longer tethers significantly increase injury risk by allowing too much forward movement.
A crash-tested crate is tested for overall structural integrity, including whether the door and latch hold under impact, and suits a dog already used to crate travel.
A crash-tested carrier, typically rated for dogs around 30 pounds and under, is secured on the rear seat per the manufacturer’s instructions and tested to remain closed and intact through the impact.
None of these three options is inherently better across the board. The right choice depends on your dog’s size, temperament, and what they’re already comfortable with.
Choosing by Size
Small and large dogs face genuinely different practical challenges when it comes to car restraint, from carrier weight limits to harness strength ratings.
See Small Dog Car Safety and Large Dog Car Safety for size-specific guidance.
Setting Up the Restraint Itself
See Dog Car Seats and Safety Restraints for a full breakdown of restraint types, fitting, and what CPS certification actually covers.
Everyday Car Safety Gear
Beyond the restraint itself, a few additional pieces of gear reduce common car-related risks, from window barriers to seat covers that keep claws off upholstery.
See Dog Car Safety Gear Ideas for the full list.
Common Mistakes
Trusting the phrase “crash tested” without checking for real certification. Many products use this language without having passed independent testing.
Using a walking harness for car travel. Regular harnesses aren’t designed or tested for crash forces and can fail under load.
Using a long tether “for comfort.” CPS testing found tethers longer than 6 inches significantly increase the risk of injury in a crash.
Letting a dog ride in a lap “just this once.” This is one of the most common distraction-related risks, and it takes only one sudden stop to cause serious injury.
FAQ
Is any pet restraint legally required in the US?
Requirements vary by state. Some states have specific laws about unrestrained pets in vehicles, so check your local regulations, though CPS certification isn’t legally mandated anywhere.
What does a CPS star rating actually mean?
A 5-star rating reflects exceptional crash test performance with minimal risk, while lower ratings reflect acceptable but less robust performance. Products that fail testing aren’t awarded certification at all.
Can I use the same restraint for every car I own?
Most restraints work across standard seatbelt systems, but always check the manufacturer’s fitting instructions for your specific vehicle.
Is a crate safer than a harness?
Neither is universally safer. A CPS-certified option in either category outperforms an uncertified option in the other, so certification matters more than the category.
The Bottom Line
Real car safety for a dog comes down to a genuinely tested restraint, correctly fitted, used on every single drive. For the broader picture across every safety category, head back to Dog Safety: The Complete Guide.
