Local 501, AFL-CIO was formed in 1953 by the merger of several regional locals. Since its humble beginnings Local 501 has grown to one of the largest Stationary Engineer Locals in the entire United States. Over the decades our Local has established itself as a pillar of highly trained, multi-skilled trade unionists throughout the Labor community. The type of work our members perform is maintenance and repair of all HVAC equipment, boiler operation, lighting, plumbing....