Montana Kayak & Canoe Registration Rules: AIS Pass, Motor Rules & What's Exempt (2026)

Do You Need to Register a Kayak in Montana?

The short answer: No — non-motorized kayaks, canoes, stand-up paddleboards, and rafts do not require registration or titling in Montana. Montana's registration requirements apply only to motorized vessels and sailboats 12 feet or longer.

However, "exempt from registration" does not mean "exempt from all rules." If you are a non-resident, you must purchase a Vessel AIS Prevention Pass ($10 for non-motorized) before launching on any Montana waterway. And if you add any type of motor — even a small electric trolling motor — your kayak or canoe immediately becomes subject to full registration and titling requirements.

This guide covers everything paddlers need to know about Montana's rules for non-motorized boats, including the critical AIS requirements, motor thresholds, and inspection protocols that apply even to exempt vessels. For the full state registration overview, see our Montana Boat Registration page.

Montana Registration Requirements by Vessel Type

The key rule is simple: any motor = registration required. This includes electric trolling motors of any thrust rating, small gas motors, and pedal-assist electric motors. Once a motor is attached, the vessel must be titled ($12) and permanently registered ($65.50 for under 16 ft). Use our registration fee calculator to estimate your costs.

The AIS Prevention Pass for Paddlers

Even though non-motorized boats are exempt from registration, non-resident paddlers must purchase a Vessel AIS Prevention Pass before launching on Montana waters. This pass funds Montana's aquatic invasive species (AIS) prevention and inspection program.

Where to purchase: The $10 non-motorized AIS Prevention Pass is available online at the FWP website, at FWP regional offices, at authorized License Ambassador locations, and at many sporting goods stores throughout Montana.

Montana residents: If you are a Montana resident using a non-motorized kayak or canoe, you do not need an AIS Prevention Pass. However, you must still comply with Clean, Drain, Dry protocols and stop at any open inspection stations when transporting your vessel between water bodies.

Clean, Drain, Dry: Rules for Every Paddler

Montana's Clean, Drain, Dry protocol applies to all watercraft — including kayaks, canoes, SUPs, and inflatables — whether you are a resident or non-resident. This is one of Montana's most important conservation requirements.

CLEAN: Remove all visible mud, plants, algae, and organisms from your kayak, paddle, PFD, bilge area, and any associated gear. Pay special attention to the hull bottom, scupper holes, rudder mechanisms, and any rope or anchor lines.

DRAIN: Empty any water from the cockpit, storage compartments, and bilge areas. For sit-on-top kayaks, turn the vessel over and allow all water to drain from scupper holes. Inflatable rafts should be deflated and drained completely.

DRY: Allow your kayak and all gear to dry completely before moving to another water body. Invasive species larvae can survive in moist environments for days. Drying your boat in direct sunlight for at least 24 hours is the best practice.

Why this matters: Montana's lakes are currently free of zebra mussels and quagga mussels — microscopic larvae (veligers) that can attach to any watercraft, including kayaks. A single contaminated kayak could introduce an invasive species that would devastate Montana's freshwater ecosystem. For the full AIS inspection process, see our Montana non-resident boating guide.

Inspection Station Rules for Paddlers

All boaters — including kayakers and canoeists — must stop at every open watercraft inspection station they encounter while transporting a boat on Montana highways. This rule applies regardless of vessel size, type, or motorization status.

In practice, kayaks and canoes on car roof racks are processed much faster than large motorboats on trailers. A typical kayak inspection takes 2 to 5 minutes and involves a visual check of the hull, cockpit, scupper holes, and gear for any attached vegetation or organisms.

Exemption for local-only use: If you are paddling a kayak on a single lake and not transporting it between different water bodies via public roads, you do not need to visit an inspection station. The inspection requirement only applies when moving watercraft between different waters.

Bypassing an open inspection station is illegal and carries fines. If a station is closed (after hours, off-season), you are not required to wait — but you must follow Clean, Drain, Dry before launching.

When a Kayak Motor Changes Everything

The moment you attach any type of motor to a kayak or canoe — even a small 30-lb thrust electric trolling motor — the vessel is no longer exempt from registration. Here is what changes:

If you use both a paddle-only and motorized configuration on the same kayak, the vessel must be registered regardless. There is no provision for "sometimes motorized, sometimes not" — if a motor was ever attached, registration is required.

For details on the registration process for motorized vessels, see our Montana boat title transfer guide.

Safety Equipment for Kayakers in Montana

Even though kayaks are exempt from registration, safety equipment requirements still apply under Montana law:

Life jackets (PFDs): One US Coast Guard-approved life jacket per person on board. Children under 12 must wear their PFD at all times while on the water — not just have one available. Adults are not required to wear PFDs but must have them readily accessible.

Sound-producing device: Motorized vessels must carry a whistle or horn. Paddle-only kayaks are not legally required to carry a sound device, but a whistle is strongly recommended for safety — especially on larger lakes where motorboat traffic is common.

Navigation lights: If you paddle after sunset or before sunrise, you must display a white light visible from 360 degrees. A waterproof headlamp clipped to your PFD or a stern light on the kayak satisfies this requirement.

Visual distress signals: Not required on inland waters in Montana for non-motorized vessels. However, if you paddle on federally controlled waters (e.g., near Army Corps of Engineers dams), federal requirements may apply.

Montana vs. Neighboring States: Kayak Rules Comparison

Montana offers the lowest AIS fee for non-resident kayakers ($10) among its neighbors, compared to $22 in Idaho and $30 in Wyoming. All four states exempt non-motorized kayaks from registration but require AIS compliance. For full state details, visit our pages for Idaho, Wyoming, and North Dakota.