Adirondack Mountain Club

Adobe Whitewater Club

Adventure Cycling Association

Ahwaga Canoe Club

Alabama Hiking Society

Alabama Whitewater Club

Alamo City Rivermen

Alaskan Alpine Club

Alaska Wilderness Recreation and Tourism Association

Alberta Country Vacations Association

Alberta Professional Outfitters Society

Allegheny Trail Alliance

The Alpine Club of Canada

American Alpine Club

American Camp Association

American Canoe Association

The American Canyoneering Association

American Hiking Society

American Long Distance Hiking Association-West

American Mountain Guides Association

American Recreation Coalition

American Safe Climbing Association

American Trails

Appalachian Caverns Foundation

Appalachian Long Distance Hikers Association

Appalachian Mountain Club

Appalachian Mountain Club Boston

Appalachian Mountain Club New Hampshire

Appalachian Mountain Club New York

Arizona Dude Ranch Association

Arkansas Canoe Club

The Arkansas Trails Council

Association of Canadian Mountain Guides

Association of National Park Rangers

Association of Nature Center Administrators

Association of Professional Safari Guides

Atlanta Kayakers

Atlanta White Water Club

Austin Paddling Club

Back Country Horsemen of America

Backcountry Horsemen of California

Backpacker Operators Association

Badger Trails

The Bartram Trail Conference

Bay Area Climbers

Bayou Haystackers

Beaver Canoe Club

The Bellingham Mountaineers

Bicycle Coalition of Maine

Bicycle Federation of Wisconsin

Birmingham Canoe Club

Bluegrass Whitewater Association

Blue Ridge River Runners Canoe and Kayak Club

Blue Ridge Voyageurs

Bluff City Canoe Club

Boston Hiking Club

Boston Sea Kayaking Club

British Association of Mountain Guides

The British Mountaineering Council

The Butler Outdoor Club