Aquatic invasive species

If you work or play in Washington’s many waterways, you may be unknowingly spreading aquatic invasive species (AIS) destructive to the state’s environment and economy. But you can also be a part of the solution, helping to stop or slow the spread of these damaging species.

We encourage the public to report possible invasive species. You can report non-native, invasive species through the Washington Invasive Species Council or the WA Invasives app (available in the Apple and Google app stores). Please call WDFW's Aquatic Invasive Species hotline with any questions at 1-888-WDFW-AIS or email ais@dfw.wa.gov.

Clean, Drain, Dry, Dispose (CD3) stations available

WDFW and the Washington Invasive Species Council have partnered to offer Clean, Drain, Dry, Dispose (CD3) stations at several boat launches in Eastern Washington, as well as a mobile CD3 unit available for events and fishing tournaments.

Learn more about the mobile CD3 unit or make a reservation.

Search for aquatic invasive species

Find information on non-native aquatic animal species, including biology and current classification.
Aquatic invasive species of greatest concern

Some aquatic invasive species, such as the European green crab, can have dramatic impacts on ecosystems, outdoor recreation, and the economy.
Preventing the spread of invasive species

Learn the proper techniques to help prevent destructive invasive species from spreading in Washington, or decontaminate potentially infested gear.
AIS prevention permits for watercraft

These permits are required for operators of watercraft not registered in Washington, seaplanes, and commercial transporters of specified vessel types.
Boat inspection request form

Request an appointment for a free boat boat inspection in Eastern or Central Washington.
Ballast water

Non-native species can enter Washington’s waterways through the discharge of ships’ ballast water, which is used to stabilize vessels.
Boating in Washington FAQs

Know AIS requirements before you go boating in Washington.
AIS publications

Review and download program reports and studies.