Unfortunately, very little research has been done to examine the effects of vibration on the worker as it occurs in the work situation in the United States. Recently, research activities into the possible health or safety effects of vibration on the worker have been done. A systematic plan for this research was developed, which includes identifying the possible problem areas of occupational vibration through a literature search, morbidity studies, and industrial surveys. Two forms of vibration are of particular interest: whole body vibration and segmental vibration (relating to specific body parts). During 1972, 45 actual factory tours were made to observe the vibration component associated with the use of the product manufactured or the vibration caused by the manufacturing process itself. Types of factories examined included: a food and beverage can manufacturing factory, textile factory, paper mill, steel mill, aluminum factory, nickel factory, heavy machine tool manufacturing, uranium processing factory, pavement breaker manufacturing factory, printing and publishing, lumber mills, and heater and refrigeration manufacturing factory. Job statistics reveal that there are 790,500 heavy-construction contractors in the United States, and some 2,500,000 workers exposed to some form of industrial vibration. As an industry total, there are approximately eight million workers exposed to some form of industrial vibration in the United States. Transportation operations represent the largest group exposed to vibration, followed by foundry operations, mining, forestry, lumber and wood products, printing and publishing, steel mills, and blast furnace workers, metal stamping, and can manufacturing.