Wood products processing operators monitor and maintain the equipment in wood products...

Railway Car Technicians ensure that trains, streetcars, and subway trains are working...

Recreation Vehicle (RV) Technicians service and repair recreational vehicles including fifth wheels,...

A Refractory Mason restores or replaces linings of furnaces, kilns, and basins...

Refrigeration & Air Conditioning Systems Mechanics plan, prepare, and lay out cooling...

Reinforcing Rodworkers reinforce concrete. To do this, they fabricate, handle, sort, cut,...

Relay & Instrumentation Technicians repair, overhaul, and calibrate vital signal control relays...

Residential Air Conditioning Systems Mechanics prepare, install, maintain, and service residential air...

Low Rise Residential Sheet Metal Installers install sheet metal air-handling and ventilation...