As a federal mechanic, you repair and provide regular maintenance for a fleet of vehicles, trucks, or another set of mechanical equipment. Federal mechanics frequently work on police cars, fire engines, a USPS car, and other mechanical equipment used by local, state, and federal agencies. Federal mechanics may also work on elevators, HVAC systems, or other devices that need routine care and replacement. Despite the name, most federal mechanics do not work directly for the government—instead, this is usually a contract position in which you may work independently or as part of a contracting company to provide services. Federal mechanics often specialize in certain types of equipment, such as diesel buses or postal vehicles.