Colorado’s boating rules cover a lot more than registration, and missing one can turn a good day on the water into an expensive one. Here’s what every boater actually needs to know, straight from Colorado Parks and Wildlife’s own regulations.
Note: This article is for general informational purposes only and does not constitute legal advice. Boating laws and penalties can change, so verify current requirements with Colorado Parks and Wildlife or a licensed attorney before relying on this information.
What Needs to Be Registered (and What Doesn’t)
Not every boat on Colorado’s water needs paperwork. Browsing Elevated Marine’s new boat inventory is a good time to start the registration process, since most owners handle it right after purchase.
Boats That Must Be Registered
Under Colorado law (CRS 33-13-103), any boat with a motor or a sail must be registered with Colorado Parks and Wildlife before it touches public water. This applies whether the boat is actively used or just sitting moored at a dock.
Boats That Are Exempt
Canoes, kayaks, paddleboards, and non-motorized rafts don’t need registration at all. Boats already documented by the U.S. Coast Guard, foreign vessels, and out-of-state boats with valid home registration used in Colorado for 60 days or less are also exempt.
Getting the ANS Stamp
Every motorized or sailed boat needs an Aquatic Nuisance Species stamp before its first launch each year. The stamp helps fund inspections that stop invasive species from spreading between lakes and reservoirs.
Displaying Your Registration
Registration numbers need to go on both sides of the bow, at least three inches tall, in a color that contrasts with the hull. The current year’s decal goes just to the left of those numbers.
Who’s Allowed to Operate
Colorado tightened its age rules in 2024, and plenty of boaters still don’t know it changed.
The Age 18 Rule
Anyone operating a motorboat or personal watercraft, including Jet Skis, must be 18 years old or older. This replaced the previous minimum age of 16.
The 14 to 17 Exception
Operators between 14 and 17 can still run a motorboat if they’ve completed an approved boating safety course. The course runs online or in person through a state-approved provider and costs around $40.
Carrying the Education Card
Once earned, the Boater Education Card has to stay on board and be ready to show an officer on request. Not having it available can result in a fine, even for an operator who legitimately completed the course.
Operators Under 14
Nobody under 14 is allowed to operate a motorboat or PWC in Colorado, no exceptions. This is one of the strictest cutoffs among neighboring states, so visiting boaters should double check before letting a younger teenager take the wheel.
Required Safety Equipment
Colorado Parks and Wildlife officers run courtesy and compliance checks at boat ramps all season. According to the official CPW boating safety page, missing or outdated life jackets are the most common issue they find.
Life Jackets for Every Passenger
Every person on board needs a U.S. Coast Guard-approved life jacket sized for their weight. Kids age 12 and under must actually wear theirs any time the boat is underway, not just have one available.
Throwable Devices on Larger Boats
Boats 16 feet or longer need one throwable Type IV flotation device on top of the wearable life jackets. It has to be kept somewhere immediately accessible, not buried in a storage compartment.
Fire Extinguishers and Sound Devices
A fire extinguisher no older than 12 years is required on board, along with a sound-producing device like a horn or whistle. Both get checked during routine safety stops.
Navigation Lights After Dark
Any boat operating between sunset and sunrise needs working navigation lights visible from all directions. These have to meet the same federal specs used nationwide, not a separate Colorado standard.
Boater’s Hypnosis Is a Real Risk
This one rarely makes it into generic boating law articles, but CPW specifically warns about it. Sun, wind, engine noise, and constant motion can dull a boater’s reaction time almost as much as being legally drunk, even with zero alcohol involved.
Mixing alcohol with a full day of sun and vibration makes the effect worse, not just additive. It’s a big part of why fatigue and BUI accidents often look similar in CPW’s incident data.
Boating Under the Influence
Colorado’s BUI law doesn’t stop at motorboats. It covers kayaks, canoes, sailboats, and paddleboards too.
The Legal Limit
The blood alcohol limit is 0.08 percent, the same threshold used for driving a car. This applies to anyone operating or in physical control of a vessel, moving or not.
Penalties for a First Conviction
A first BUI carries a mandatory minimum of five days in jail, up to a year, and fines between $200 and $1,000. The convicted operator also loses boating privileges for three months.
Owner Liability for Impaired Operators
A boat owner can be charged for knowingly letting an impaired person take the wheel, even if they weren’t driving themselves. This matters most when groups swap operators throughout the day.
Why This Matters for Your Coverage
A BUI conviction can also affect claims under your boat insurance policy, since most insurers treat it as a serious liability event. Planning for a designated operator protects more than just your record.
Rules on the Water
Beyond registration and licensing, Colorado enforces a handful of on-water conduct rules that catch people off guard.
No-Wake Zones
Most reservoirs post no-wake zones near docks, swimmers, and marina entrances. Ignoring one is a quick way to get a citation, even if no damage occurs.
Towing Skiers and Tubers
Anyone towing a skier or tuber needs either an observer on board or a wide-angle mirror. A flag is also required to mark a person in the water once they’ve fallen.
Right-of-Way Basics
When two boats are on a crossing path, the boat on the right generally has the right of way. Sailboats and boats with limited maneuverability typically get priority over powered boats in most situations.
Lights and Horns
Navigation and sound equipment follow the same standards set nationwide by the U.S. Coast Guard. Gear that meets federal specs is automatically compliant in Colorado.
Accidents, Reporting, and Closures
A few rules only come up after something already went wrong, or when conditions change mid-season.
When You Have to Report an Accident
Boating accidents above certain injury or damage thresholds must be reported to Colorado Parks and Wildlife. Failing to file a required report is itself a misdemeanor under state law.
Current Water Closures
Drought and low water levels can close specific lakes to boating with little notice. Checking CPW’s current closures list before a trip avoids showing up to a launch ramp that’s shut down.
Free Life Jacket Loaner Stations
CPW runs a loaner program with life jacket stations at roughly 25 state parks. It’s a useful backup if a guest shows up without one, though it shouldn’t replace having your own gear on board.
Quick Reference
| Rule | Requirement |
| Minimum operator age | 18, or 14 to 17 with a safety course |
| BAC limit | 0.08 percent |
| Life jacket age rule | Worn by kids 12 and under while underway |
| Registration | Required for motorized and sailed boats only |
| ANS stamp | Required before first launch each year |
Conclusion
Colorado’s boating laws cover more ground than registration and a life jacket check. Age limits, BUI penalties, reporting rules, and even seasonal closures all factor into staying legal on the water. A few minutes reviewing the details ahead of time is a lot cheaper than finding them out from a citation.
People Also Ask
Do I need to register a kayak or paddleboard in Colorado?
No, manually propelled boats like kayaks, canoes, and paddleboards are exempt from registration. Only motorized and sailed vessels need to be registered with Colorado Parks and Wildlife. Non-motorized rafts fall under the same exemption.
What happens if I don’t carry my Boater Education Card?
An operator who completed the required course but doesn’t have the card on board can still be fined. The card needs to be physically available to show an officer during a stop. Losing it means requesting a replacement before it becomes an issue.
Do I have to report a boating accident in Colorado?
Yes, accidents above certain injury or property damage thresholds must be reported to Colorado Parks and Wildlife. Failing to file a required report is a misdemeanor on its own. Minor incidents with no injury or significant damage typically don’t require a formal report.
Are there rules for towing water skiers in Colorado?
Yes, the operator needs either an observer on board or a wide-angle mirror while towing a skier or tuber. A flag is also required to mark someone in the water after a fall. These rules apply to any towed water sport, not just skiing.
Where can I check for boating closures in Colorado?
Colorado Parks and Wildlife posts current closures on their boating activities page, which updates through the season. Drought and low water levels are the most common causes. Checking before a trip avoids arriving at a closed launch ramp.