The American Association of Port Authorities (AAPA) is a trade association that represents deep draft public port authorities throughout the U.S., Canada, Latin America and the Caribbean.

The American Planning Association and its professional institute, the American Institute of Certified Planners, is dedicated to advancing the art, science and profession of good planning — physical, economic and social — to create communities that offer better choices for where and how people work and live.

American Rivers works to protect and restore the nation’s rivers and streams through advocacy efforts, on-the-ground projects, and the annual release of its America’s Most Endangered Rivers® Report.

The American Shore & Beach Preservation Association is dedicated to preserving, protecting and enhancing the beaches, shores and other coastal resources of America.

The Association of State Dam Safety Officials (ASDSO) is a non-profit organization of state and Federal dam safety regulators, dam owners/operators, dam designers, manufacturers/suppliers, academia, contractors and others interested in dam safety.

The Association of State Floodplain Managers (ASFPM)  is an organization of professionals involved in floodplain management, flood hazard mitigation, the National Flood Insurance Program, and flood preparedness, warning and recovery. ASFPM also administers the Certified Floodplain Manager (CFM) program for flood risk professionals.

The Coastal States Organization represents the Governors of the nation’s 35 coastal states, commonwealths and territories on legislative and policy issues relating to the sound management of coastal, Great Lakes and ocean resources.

The National Association of Flood and Stormwater Management Agencies (NAFSMA)   is an organization of public agencies that function to protect lives, property and economic activity from the adverse impacts of storm and flood waters.

The National Emergency Managers Association (NEMA)  is a professional association of and for emergency management , providing national leadership and expertise in comprehensive emergency management.

The Natural Hazards Mitigation Association brings together individuals and organizations working in the field of hazard mitigation.

The Nature Conservancy is a conservation organization working around the world to protect ecologically important lands and waters for nature and people.