Rarely, other fibres such as paper or wood or asbestos have been used. The polymer is usually an epoxy, vinylester or polyester thermosetting plastic, and phenol formaldehyde resins are still in use. FRPs are commonly used in the aerospace, automotive, marine, construction industries and ballistic armor.
On  March 31, 1933, the U.S. Congress enacted legislation creating the Civilian Conservation Corps (CCC), a Depression-era federal agency. The CCC was one of the New Deal programs initiated in the first one hundred days of Franklin D. Roosevelt's presidential administration.
In 1935 the CCC began the best years of its life. In 1935, the Civilian Conservation Corps began the best years of its life. The early days of drafty tents, poor fitting uniforms and hazardous operations were gone. Individual congressmen and senators were quick to realize the importance of the camps to their constituencies and political futures.