No, if you’re 18 or older you do not have to wear a seatbelt in the back seat in Colorado. The state’s seatbelt statute requires only drivers and front-seat passengers to buckle up, so adult rear-seat passengers are not breaking any traffic law by riding unrestrained.1Justia. Colorado Code 42-4-237 – Safety Belt Systems – Mandatory Use – Exemptions – Penalty – Definitions The rules changed for younger passengers, though: as of January 1, 2025, everyone under 18 must be restrained regardless of where they sit.2Colorado Department of Transportation. New Law Will Take Effect Jan. 1, 2025 to Keep Kids Safe
The 2025 Change for Passengers Under 18
Before January 1, 2025, Colorado’s child restraint law reached only children under 16. That left 16- and 17-year-olds in a strange middle zone where they could legally ride unbuckled in the back seat. House Bill 24-1055 closed that gap by extending the requirement through age 17.2Colorado Department of Transportation. New Law Will Take Effect Jan. 1, 2025 to Keep Kids Safe
This part of the law is a primary offense. An officer who sees an unrestrained minor in your vehicle can pull you over for that alone. The parent riding in the car is on the hook for making sure the child is properly secured; if no parent is present, responsibility shifts to the driver.3Justia. Colorado Code 42-4-236 – Child Restraint Systems Required – Definitions – Exemptions
Restraint Requirements by Age
What counts as “properly restrained” depends on the child’s age and weight:3Justia. Colorado Code 42-4-236 – Child Restraint Systems Required – Definitions – Exemptions
- Under 2 years old: must ride in the back seat when one is available. Children under 40 pounds need a rear-facing car seat; those 40 pounds or more can use rear-facing or forward-facing.
- Ages 2 through 3: rear-facing or forward-facing car seat, in the back seat when available.
- Ages 4 through 8: car seat or booster seat, in the back seat when available.
- Ages 9 through 17: properly restrained in a seatbelt or child restraint system.
A child restraint ticket carries a minimum fine of $82. No points hit the adult driver’s license for the violation.4Colorado Department of Transportation. Seat Belt Enforcement Period Results in 1,593 Citations Statewide
What If the Driver Is Under 18
Colorado’s Graduated Drivers Licensing program tightens the rules further when a teen is behind the wheel. Under the GDL law, the teen driver and every passenger must wear a seatbelt no matter their age or seat. Enforcement is primary, so an officer can stop the vehicle simply for spotting an unbuckled occupant.5Colorado State Patrol. Under 18, Seatbelts Are Primary Enforcement Law
Penalties for the teen driver include mandatory community service (8 to 24 hours for a first offense), a fine of up to $65, and 2 points against the license.6Justia. Colorado Code 42-2-105.5 – Penalties Points matter more for a young driver working toward a full license, since they can trigger a suspension.
Enforcement and Fines for Adults Up Front
For adults, the seatbelt requirement in the front seat is a secondary offense. An officer cannot pull you over solely because you’re unbuckled; they need to observe another violation first, and the seatbelt citation gets added on.7Colorado Department of Transportation. Colorado Department of Transportation – Seat Belts The fine starts at $65 plus surcharges, and it goes to the unbuckled person rather than the driver, as long as that person is 18 or older.4Colorado Department of Transportation. Seat Belt Enforcement Period Results in 1,593 Citations Statewide No points are added to an adult’s driving record.
The Real Cost of Riding Unbuckled in the Back
Legal and safe from consequence are not the same thing. Colorado law lets the other driver’s attorney argue in an injury lawsuit that your failure to wear a seatbelt made your injuries worse, which reduces the compensation you can recover for pain and suffering.1Justia. Colorado Code 42-4-237 – Safety Belt Systems – Mandatory Use – Exemptions – Penalty – Definitions
The statute caps that specific reduction at 5% of non-economic damages. On a $200,000 pain-and-suffering claim, that’s $10,000 gone. Seatbelt non-use can also feed into Colorado’s comparative fault analysis more broadly. If a jury assigns you 50% or more of the responsibility for your own injuries, you recover nothing at all. An unbuckled back-seat passenger with a serious injury is precisely the fact pattern insurers use this defense against.
Who Is Exempt
A few situations fall outside the seatbelt requirement entirely:1Justia. Colorado Code 42-4-237 – Safety Belt Systems – Mandatory Use – Exemptions – Penalty – Definitions
- People with a physical or psychological disability that makes seatbelt use inappropriate, provided they carry a written statement from a physician.
- Vehicles built before federal law required seatbelts, which in practice means most passenger cars manufactured before 1968.
- U.S. Postal Service rural letter carriers while performing delivery duties.
- Ambulance crew members (other than the driver) caring for a patient during transport.
- Occupants of passenger buses, school buses, motorcycles, and farm equipment, which the statute excludes from its definition of “motor vehicle.”
Only the medical exemption requires documentation you’d need on hand. The others apply automatically based on the vehicle or your role at the time.