Oregon State University

Invasive Mussels in the West: A Multi-state Collaboration

Invasive mussels sign on boat trailer

Oregon Sea Grant has partnered with legal and regulatory agencies from around the nation to explore possible ways to slow the spread of invasive mussels and other organisms via watercraft. This page serves as a resource and archive for those meetings.

Jump to 2014 resources

2012: Legal and Regulatory Efforts to Minimize Expansion of Invasive Mussels through Watercraft Movements:

A Co-learning Workshop

On August 22–23, 2012, a workshop was hosted by the Arizona Game and Fish Department and convened in Phoenix, Arizona, by the US Fish and Wildlife Service, the National Association of Attorneys General, Oregon Sea Grant, the National Sea Grant Law Center, and the Western Regional Panel on Aquatic Nuisance Species. The purpose of the workshop was to engage Assistant Attorneys General, natural resource agency attorneys, law enforcement supervisors, policy makers, and the Aquatic Invasive Species (AIS) Coordinators from the 19 Western states, interstate organizations, and Federal partners to establish clear legal and regulatory approaches and opportunities for AIS abatement and reform. One clear deliverable from this workshop was the creation of an action plan that articulates needed actions at the federal/national, regional, state, and local levels to minimize the expansion of invasive mussels through watercraft movements in the western United States. Downloadable resources.


2013: Building Consensus in the West—A Multi-State Vision for Watercraft Inspection Programs.

Representatives from western states convened August 13–15, 2013, in Denver, Colorado for a workshop titled, “Building Consensus in the West—A Multi-State Vision for Watercraft Inspection Programs.” The workshop advanced three specific items from the the action plan that evolved from the August 2012 meeting related to developing standard definitions and criteria and model statutory/regulatory language to implement a comprehensive watercraft inspection and decontamination program. Downloadable resources.

Downloadable resources

2012 Phoenix meeting:

2013 Denver meeting:

2014 Denver II meeting:

Download the entire resource package for the February 2014 meeting from Dropbox (no account required) including the following documents:


  • Aquatic Nuisance Species Watercraft Inspection Handbook
  • Aquatic Nuisance Species Watercraft Decontamination Manual
  • Boat Compendium for Aquatic Nuisance Species Inspectors
  • Containment Manual for Watercraft Inspection and Decontamination Stations
  • Step-by-Step Procedures for Entrance Inspections
  • Inspection and Decontamination Seal Receipt for containment waters
  • Inspection and Decontamination Seal Receipt for prevention waters
  • Watercraft Inspection and Decontamination Activity Log
  • 2013 Watercraft Inspection and Decontamination Station Authorized Location QC Evaluation Form - Containment Exit 
  • 2013 Authorized Location for Watercraft Inspection Quality Assurance Report

Lake Tahoe

  • Watercraft Inspection Book
  • Decontamination Procedures
  • Watercraft Inspection Flow Chart
  • Watercraft Inspection Protocols and Procedures
  • AIS Found Flow Chart


  • Watercraft Inspection Station Operation Protocols

New Mexico

  • AIS Certificate of Decontamination
  • Dry Time Requirements
  • Inspection Sheet
  • List of Infested Waters
  • Release and Waiver Form 
  • Warning Tag


  • Aquatic Invasive Species Watercraft Inspection and Decontamination Manual
  • Wyoming Game and Fish Department Aquatic Invasive Species Watercraft Inspection and Decontamination
  • Certification Guidelines

National Sea Grant Law Center

  • Compilation of western state laws and regulations on watercraft inspection and decontamination

For more information:

Samuel Chan, Oregon Sea Grant, 503-679-4828, e-mail
Stephanie Showalter Otts, National Sea Grant Law Center, 662-915-7714, e-mail
Joanne M. Grady, U.S. Fish & Wildlife Service, 303-236-4519, e-mail

Additional Resources:

Contact Info

Oregon Sea Grant
1600 SW Western Blvd
Suite 350
Corvallis OR 97333
Phone: 541-737-2714
FAX: 541-737-7958

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