An official website of the United States government
A .mil website belongs to an official U.S. Department of Defense organization in the United States.
A lock (lock ) or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.

Resource | May 1, 2026

May

Life Jackets and Engine Cut-Off Switches

Every time you head out on the water, safety should come first. Two of the simplest things that can save lives are wearing a life jacket and using your engine cut off switch. These small actions can make a huge difference during an emergency.

Life Jackets Save Lives

A life jacket, also called a Personal Flotation Device (PFD), helps keep you afloat if you fall into the water. The U.S. Coast Guard recommends that everyone wear a properly fitted, U.S. Coast Guard approved life jacket while boating.

Many boating deaths happen because people were not wearing life jackets. Even strong swimmers can struggle in cold water, rough waves, or after an injury. A life jacket helps keep your head above water and gives rescuers more time to reach you.

Tips for Choosing and Wearing a Life Jacket

  • Make sure it is U.S. Coast Guard approved
  • Choose the correct size for the person wearing it
  • Check for damage like rips, broken straps, or worn material
  • Keep it readily accessible
  • Children should always wear their life jacket while underway

For personal watercraft like Jet Skis, wearing a life jacket is required, and inflatable life jackets are generally not allowed.


What Is an Engine Cut Off Switch?

An engine cut off switch, sometimes called a kill switch, is a safety device that shuts off the boat’s engine if the operator falls away from the controls. Most systems use a coiled lanyard attached to the operator’s life jacket or clothing.

If the operator is thrown from the boat and the lanyard disconnects, the engine stops automatically.

Without this device, the boat may continue moving with nobody in control. In some cases, runaway boats circle back and strike people in the water.

When Is an Engine Cut Off Switch Required?

Federal law requires operators of many recreational boats under 26 feet to use an engine cut off switch link while operating above idle speed or “on plane.” This law went into effect in 2021.

The law generally applies to:

  • Recreational boats less than 26 feet long
  • Boats with engines capable of about 3 horsepower or more
  • Boats equipped with an engine cut off switch

There are some exceptions, including certain boats with enclosed cabins.


Why These Two Safety Devices Work Together

Life jackets and engine cut off switches are most effective when used together.

Imagine a boater hits a large wake and gets thrown from the helm:

  • The life jacket helps keep them afloat
  • The engine cut off switch stops the boat from continuing uncontrolled

That combination can prevent propeller injuries, collisions, and drowning.

Simple Habits That Make Boating Safer

Before leaving the dock:

  • Put on your life jacket
  • Attach your engine cut off switch lanyard
  • Check weather conditions
  • Make sure passengers know basic safety rules
  • Keep emergency equipment onboard

Boating should be fun, but safety needs to come first every trip. Wearing a life jacket and using your engine cut off switch only takes a few seconds, but those few seconds could save a life.

Subscribe now to receive Beacon Alerts!