Colorado Revised Statutes Title 42 is the body of state law that governs vehicles and traffic in Colorado. It sets who can drive, how vehicles are titled and registered, what insurance you must carry, how you have to behave on the road, and what equipment your car needs to be legal. The statute applies to residents, visitors, and commercial operators alike, and its penalties range from small fines to felony prison time.
What follows is a practical read of the pieces of Title 42 most drivers actually run into.
Who Can Drive and What License You Need
You can apply for a Colorado learner’s permit at 15. Between 15 and 15½, you must first finish a 30-hour driver education course. Between 15½ and 16, you can satisfy the requirement with that 30-hour course or a shorter four-hour driver awareness program.1Colorado Division of Motor Vehicles. Permits: First-time Driver License From there, you progress through graduated licensing before earning a full license.
Colorado issues several license classes. Class R covers standard passenger vehicles. Classes A, B, and C cover commercial motor vehicles, sorted by weight and cargo. Commercial drivers face federal requirements on top of state ones, including a valid Medical Examiner’s Certificate for anyone operating a vehicle over 10,000 pounds in interstate commerce.2Federal Motor Carrier Safety Administration. Medical
Since May 7, 2025, federal agencies enforce REAL ID at airport security and federal buildings. If your Colorado license doesn’t carry the star, you’ll need a passport or other approved federal ID to board a domestic flight. To upgrade, bring proof of identity, lawful status, a Social Security number, and Colorado residency documents to a driver license office; the state’s DR2300A form lists which documents qualify.3Colorado Division of Motor Vehicles. REAL ID and Colorado
Title 42 also requires you to notify the Division of Motor Vehicles within 30 days of any address change. Driving without a valid license, or on a revoked one, is a misdemeanor that can carry jail time.
Titling and Registering a Vehicle
Before you can register a vehicle, you need a certificate of title that proves ownership and records any lender’s lien. Once you own the vehicle, you have 60 days from the date of purchase to register it. New residents have 90 days from the date they establish Colorado residency.4Justia. Colorado Code 42-3-103 – Registration Required – Exemptions – Rules
Registration requires a valid VIN and proof of residency. Fees track vehicle weight and age. Miss the deadline and you’ll pay a late fee of $25 per month, or $10 per month for trailers, capped at $100.5Colorado Division of Motor Vehicles. Taxes and Fees Driving with expired tags is a Class B traffic violation, with fines generally running $15 to $100.6The Colorado Sun. Is a $100 Fine the Only Penalty for Driving With Expired Tags in Colorado?
Federal law layers on an odometer disclosure requirement whenever a vehicle changes hands. Vehicles from model year 2010 or earlier are exempt once they’re at least 10 years old. Vehicles from model year 2011 onward aren’t exempt until they’re at least 20 years old. Heavy-duty vehicles over 16,000 pounds and non-motorized vehicles are exempt entirely.7eCFR. 49 CFR Part 580 – Odometer Disclosure Requirements
Insurance You Must Carry
Every registered vehicle must carry liability insurance meeting these statutory minimums:8Colorado General Assembly. Mandatory Automobile Insurance in Colorado
- $25,000 for bodily injury or death to one person per accident
- $50,000 for bodily injury or death to all persons per accident
- $15,000 for property damage per accident
You must carry proof of insurance and show it on request from an officer or after a collision. Driving without insurance is a Class 1 misdemeanor traffic offense with a mandatory minimum fine of $500, 4 points on your license, and possible community service of at least 40 hours. A court may cut the fine in half if you can show you’ve since obtained coverage.
Uninsured and underinsured motorist coverage is optional, but insurers must offer it at the same level as your liability limits. You can reject it in writing or pick lower limits.9Colorado General Assembly. Optional Automobile Insurance Coverage
After certain serious violations, including a DUI conviction or driving uninsured, the state may require an SR-22 certification. This isn’t a type of insurance; it’s a form your insurer files with the state confirming you carry at least the minimum coverage. Colorado typically requires the SR-22 to stay on file for about three years, and if your policy lapses in that window your insurer must tell the state, which will suspend your license again.10Colorado State Patrol. DUI – Don’t Underestimate Impairment
Rules of the Road
Article 4 of Title 42 is the part most drivers interact with daily. Signal continuously for at least the last 100 feet before a turn or lane change in town. On four-lane highways and any road posted above 40 mph, that distance doubles to 200 feet.11Justia. Colorado Code 42-4-903 – Turning Movements and Required Signals Speed limits are posted and tied to road conditions; violations are either Class A or Class B infractions depending on how far over you were.
Colorado prohibits holding a cell phone while driving. A first violation runs $75 and 2 license points, with higher fines for repeat offenses. First-time violators can get the charge dismissed by showing proof they bought a hands-free accessory. Drivers under 18 can’t use a phone at all behind the wheel, except in a genuine emergency.12Colorado Department of Transportation. The Hands-Free Law
When passing a cyclist, leave at least three feet of clearance. Cyclists are bound by the same signals and signs as drivers.
The move over law requires you to change lanes away from any stopped vehicle with flashing lights, which includes emergency responders, tow trucks, maintenance vehicles, and ordinary cars using their hazard flashers. If you can’t safely move over, slow down to 25 mph or less in a 40 mph zone, or at least 20 mph below the posted limit in zones of 45 mph and above. A violation is a Class 2 misdemeanor traffic offense carrying a $150 fine and 3 points.13Colorado State Patrol. Slow Down Move Over
Child Passengers
Colorado’s child restraint rules vary by both age and weight:14Colorado Department of Transportation. Colorado Child Passenger Safety Law
- Under 2: back seat when available. Under 40 pounds, rear-facing seat. Over 40 pounds, rear-facing or forward-facing.
- Ages 2 to 3: back seat. Under 20 pounds, rear-facing. Over 20 pounds, rear-facing or forward-facing.
- Ages 4 to 8: back seat. Under 40 pounds, rear- or forward-facing seat. Over 40 pounds, forward-facing seat or booster.
- Ages 9 to 17: booster seat or seat belt, with the shoulder belt across the chest and shoulder (not the neck) and the lap belt flat across the upper thighs.
All restraints must meet Federal Motor Vehicle Safety Standards and be installed per both the seat and vehicle manufacturer’s instructions.
Points and License Suspensions
Every traffic violation carries a point value that lands on your record. Suspension thresholds depend on age:15Colorado Department of Revenue. Point Suspensions
- Drivers 17 and under: 6 points in any 12-month period, or 7 points total before turning 18.
- Drivers 18 to 20: 9 points in 12 months, 12 in 24 months, or 14 total between ages 18 and 21.
- Adults 21 and older: 12 points in 12 months, or 18 in 24 months.
- Chauffeurs: 16 points in 12 months, 24 in 24 months, or 28 in 48 months.
Points stack fast. Speeding 10 to 19 mph over costs 4 points, 20 to 39 over costs 6, and 40 or more over costs 12, which is enough to suspend an adult license on a single ticket. Even 5 to 9 mph over carries 1 point.16FindLaw. Colorado Revised Statutes Title 42 Section 42-2-127
Impaired Driving
Colorado draws two lines. A DUI applies at a blood alcohol concentration of 0.08% or higher. A DWAI applies at just 0.05%.10Colorado State Patrol. DUI – Don’t Underestimate Impairment Both offenses can also be charged on drug impairment regardless of BAC.
A first-offense DUI carries 5 days to 1 year in jail and a $600 to $1,000 fine. A first DWAI carries 2 to 180 days in jail and a $200 to $500 fine.17Colorado General Assembly. Colorado Drunk Driving Laws – Colorado Law Summary A first DUI also typically brings a 9-month license revocation, mandatory ignition interlock, and an alcohol and drug education program of up to 76 hours. State estimates put the all-in average cost of a first DUI at $13,530 once fines, fees, insurance, and programs are added together.
By driving on Colorado roads you’ve already given implied consent to chemical testing when an officer has probable cause to suspect impairment. On request, you must provide a breath or blood sample within two hours of driving. Refusal is a separate violation with its own license consequences. For commercial drivers, refusal triggers a 24-hour out-of-service order and a one-year revocation of commercial driving privileges.18Justia. Colorado Code 42-4-1301.1 – Express Consent
What You Must Do at a Crash
If you’re involved in a crash, you have to stop, exchange information, and render reasonable assistance to anyone injured. When a collision causes injury or significant property damage, you must notify law enforcement.
Leaving the scene is where a bad situation becomes a criminal one. If only property was damaged, it’s a Class 2 misdemeanor traffic offense, carrying up to 90 days in jail, fines up to $300 (surcharges can push the total past $1,000), and 12 points. If anyone was injured, the charge becomes a Class 1 misdemeanor with up to a year in jail and $1,000 in fines, or a Class 4 felony with 2 to 6 years in prison when injuries were serious. If someone dies and the driver leaves, it’s a Class 3 felony with a mandatory minimum year in prison and fines up to $750,000.
Equipment Your Vehicle Must Meet
Headlamps, tail lamps, and turn signals must work and be visible at the distances the statute specifies. Brakes must stop the vehicle within statutory limits. Windshields can’t have cracks or obstructions that impair visibility. Tires must meet minimum tread depth, which matters a great deal through Colorado winters.
Window tint has two separate limits: at least 70% light transmittance through the windshield and at least 27% through all other windows.19Colorado General Assembly. HB19-1067 Motor Vehicle Window Tint Going darker than 27% on side or rear glass will earn a ticket.
Emissions inspections are required for most vehicles registered in the Denver metro area and the North Front Range. Gasoline vehicles are exempt for their first seven model years, diesel vehicles for their first four. Motorcycles, all-electric vehicles, kit cars, and farm vehicles are fully exempt. If you’re transferring ownership of a gasoline vehicle in its seventh model year or a diesel in its fourth, a test is required even if it would otherwise still be exempt.20Colorado Division of Motor Vehicles. Emissions