BOAT Decontamination

Courtesy Boat Decontamination Provided by MN DNR

Boaters can have courtesy decontamination done at dozens of locations around the state of Minnesota. The decontamination units and DNR-authorized watercraft inspectors help to comply with invasive species laws and reduce the risk of spreading aquatic invasive species. For detailed information visit:

Courtesy Decontaminations: What to expect

  • The crew will be working at an open public water access.

  • Watercraft entering and exiting the water will have priority. You may have to wait.

  • Inform the inspector that you are there for a courtesy decontamination.

Before your visit:

  • Call the contact person listed for the site to confirm the unit is present.

  • Arrive at least 30 minutes prior to the posted end time.

  • If you are traveling with prohibited invasive species attached to your watercraft (such as zebra mussels) please print out and complete a permit before traveling.

Decontamination station map for Cass County: Cass County Decontamination Map

FREE Decontamination. Call Hotline 218-682-2225 (ACCL) for more information or text CWCDECON to 72345 for Crow Wing.