American Motorcyclist Association

Off-Road Business Association ORBA

Blue Ribbon Coalition

Quite Warrior Racing

California Motorized Recreation Council

California Association of 4-Wheel Drive Clubs

National Off Highway Vehicle Conservation Council 

California League Off-Road Voters

Aaron Read & Associates

Friends of District 36

National Motorcycle Patrol

Carnegie Forever

Carnegie SVRA Task Force

Friends of Clear Creek

Friends of the Rubicon

Hollister Hills Off-Road Association (HORRA)

Prairie City Improvement Group (PIGS)