Colorado Kayak Registration Rules: Canoes, SUPs & Motorized Kayaks (2026)

Do You Need to Register a Kayak in Colorado?

The short answer: it depends on whether your kayak has a motor. Colorado's registration rules turn entirely on propulsion — not on vessel length, hull type, or intended use. An unpowered kayak on a remote alpine lake and a bass kayak with a 55-pound thrust trolling motor at Pueblo Reservoir are treated completely differently under Colorado law.

Non-motorized kayaks, canoes, paddleboards, and rafts do not require registration with Colorado Parks and Wildlife (CPW). However, they must be marked with the owner's name and current address in a legible, visible, and durable manner.

Kayaks with any motor attached — even a small electric trolling motor — must be fully registered with CPW, display registration numbers, carry an ANS stamp, and comply with all requirements that apply to motorboats.

Sailboats, including small sailing kayaks and sailing canoes, must also be registered. Any sail propulsion triggers the registration requirement regardless of whether the vessel also has a motor.

This guide covers the exact rules for each vessel type, what "owner marking" means, when a motor triggers registration, and how Colorado compares to other states. For the full motorized boat registration process, see our Colorado Boat Registration Guide.

Registration Requirements by Vessel Type

Here is a complete breakdown of Colorado's registration and documentation requirements for every type of paddle-powered, wind-powered, and motorized small craft:

Owner Marking: The "Registration" for Non-Motorized Boats

While non-motorized kayaks, canoes, and paddleboards do not need CPW registration, Colorado law requires them to be marked with the owner's name and current mailing address. This marking must be legible, visible, and durable — meaning it won't wash away in water.

Common approaches that satisfy this requirement:

Waterproof adhesive label: Apply a printed label with your name and address to an accessible interior or exterior surface. Marine-grade vinyl labels work well.

Engraving or permanent marker: Write your information directly on the hull interior using a permanent (indelible) marker. Some paddlers engrave their name into a visible compartment lid.

Attached tag or plate: A riveted or screwed-on metal or plastic tag with your information engraved or embossed. This is the most durable option.

There is no specific location requirement — place it somewhere that is readable but does not interfere with the vessel's appearance or function. Inside the cockpit rim of a kayak or on the interior gunwale of a canoe are common choices.

Why it matters: CPW rangers use owner markings to identify vessels left overnight at boat ramps, recover lost or stolen boats, and contact owners about safety issues. Failure to mark a non-motorized vessel can result in a warning or citation.

When a Motor Changes Everything

The moment you attach any motor to a kayak, canoe, or other previously exempt vessel, it becomes subject to the full range of Colorado boating regulations:

CPW registration: $35.25 to $55.25/year depending on vessel length (most kayaks fall under 20 feet: $35.25).

ANS stamp: $25.00 for residents, $50.00 for non-residents. Purchased annually.

Registration number display: CO 1234 AB in block letters at least 3 inches high on both sides of the bow.

AIS inspection: Required if the vessel is trailered. Kayaks carried on a roof rack may not trigger the inspection requirement, but if you transport the motorized kayak on a trailer, you must stop at an AIS inspection station before launching.

This applies to all motor types: electric trolling motors, small gas outboards, and even experimental jet-drive units. There is no minimum horsepower or thrust threshold — any propulsion mechanism triggers the requirement.

Important nuance: Detachable motors create a gray area. If you own a kayak that sometimes has a trolling motor attached and sometimes does not, you technically need registration only when the motor is mounted. However, many kayak anglers register their vessels full-time to avoid any ambiguity and potential citations.

Sailboat Registration in Colorado

Sailboats — from small Sunfish and Laser dinghies to large keelboats — must be registered with CPW and carry an ANS stamp. This includes sailing kayaks and sailing canoes with any type of sail rig, regardless of whether the vessel also has a motor.

The registration fees are the same as for motorboats, based on vessel length. Most small sailboats (under 20 feet) pay $35.25 annually plus the $25.00 ANS stamp.

Small sailboats stored on trailers must also undergo AIS inspections when launching. Sailboats permanently docked at a marina or moored on a specific lake may not need to pass through inspection each time, but must be inspected when first brought to the body of water.

Safety Equipment for Kayaks and Canoes

Regardless of whether your kayak or canoe requires registration, Colorado requires specific safety equipment on all watercraft:

Colorado's mountain lakes can be deceptively cold even in summer, with water temperatures often in the 40s to 50s°F. While not legally required for adults, wearing a PFD at all times is strongly recommended by CPW and rescue services.

How Colorado Compares to Other States

Colorado's approach to kayak registration is typical of the western United States. Here is how it compares to other popular kayaking destinations:

Colorado's $25 ANS stamp is comparable to AIS surcharges in other states with invasive species concerns. The owner-marking requirement for non-motorized vessels is less common but practical for CPW enforcement.

Common Questions and Gray Areas

"My kayak has a motor mount but no motor. Do I need to register?" No. Registration is triggered by the motor being attached, not by the mount. If the motor is not installed, the kayak is treated as unpowered. However, if a CPW officer sees an empty motor mount, they may question whether you removed the motor before inspection.

"I use a pedal-drive kayak (like Hobie MirageDrive). Is that a motor?" No. Pedal-drive kayaks use human power transferred through fins or propellers, not electric or gas propulsion. They are classified the same as paddle-powered kayaks — no registration required, but owner marking is still needed.

"What about inflatable kayaks?" Same rules apply. Non-motorized inflatables are exempt from registration. If you attach a motor, registration is required. The owner-marking requirement applies to all inflatable vessels.

"Can I use my motorized kayak on all Colorado lakes?" Registration and ANS stamp allow you to operate on public waters statewide, but some lakes and reservoirs have wakeless-only or no-motorboat designations. Check specific lake regulations before heading out.