Get a carbon monoxide warning sticker

Warning stickers are required by law

By law, any new or used motor driven vessel, other than a Jet Ski type personal watercraft, must display a sticker that warns passengers of the dangers of carbon monoxide (CO) poisoning.

Carbon monoxide sticker

You may use either the Washington State CO warning sticker shown above or a sticker installed by the manufacturer or another state, as long as it is approved by the Department of Licensing. The sticker must be attached to the interior of the vessel and visible to the passengers.

How to get a warning sticker

  • If you already own a boat, we will give you a sticker and a CO warning brochure at no charge when you renew your vessel registration or register your boat in Washington after moving to the state. If you don’t receive a sticker when you renew or register, contact your local vehicle licensing office or call (360) 902-3812.
  • If you buy a boat from a dealer, the dealer will attach the sticker before the transaction is completed and give you a CO warning brochure.
  • If you buy a boat from an individual, we will give you a sticker and a CO warning brochure at no charge when you transfer ownership into your name.

Where to attach the sticker

You must attach the sticker on the interior of the vessel so it is clearly visible to the passengers.

Teak surfing

Teak surfing refers to body surfing by holding on to the swim platform of a moving vessel. It is extremely dangerous because it puts the surfer directly in the path of the boat’s exhaust and poisonous carbon monoxide. Teak surfing is a violation of Washington State law punishable by a fine of up to $100.

Frequently asked questions about CO poisoning

What is carbon monoxide?
Carbon monoxide is a colorless, odorless, and tasteless gas produced by burning carbon-based fuel such as gasoline, propane, charcoal, or oil. It may come from your boat’s engine, gas generators, cooking ranges, grills, or space heaters.
Why is CO so dangerous?
Carbon monoxide enters your bloodstream through the lungs, blocking the oxygen your body needs. Prolonged exposure to low CO concentrations or very quick exposure to high CO concentrations can kill you.
What are the symptoms of CO poisoning?
Symptoms are often confused with seasickness or intoxication, and include:
  • Irritated eyes
  • Headache
  • Nausea
  • Weakness
  • Drowsiness
  • Vomiting
  • Fatigue
  • Confusion
  • Dizziness
How can I protect myself and others?
  • Know where your boat’s exhaust outlets are located and keep everyone away from these areas.
  • Install and maintain marine-grade approved CO detectors.
  • Maintain your engine. Engines that aren’t properly tuned produce more CO.
What should I do if I suspect CO poisoning?
  1. Get everyone to fresh air right away.
  2. Call Washington Poison Center at 1-800-222-1222.
  3. If the person is unconscious, call 911.

More information