Although they are SCCA members, the workers themselves organize into either loose or highly regulated operational units that are separate from their membership in SCCA. Two of the oldest and most well known are the United States Auto Race Marshals (USARM), organized in 1964, and Lake Erie Communications, organised in 1962. Other less regulated worker organizations include the Texas Turn Marshals & Racer Chasers, the Leaping Lizards Corner Crew of Kansas City, the Swamp Rats from Florida, Michigan Turn Marshals (MTM), Race Services Inc. at Watkins Glen International and others. All of these worker groups emphasise camaraderie and professionalism among the workers to complement the competition of the drivers.