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.
The greatest concentration of CCC personnel was in the Sixth Civilian Conservation Corps District of the First Corps Area, in the Winooski River Valley of Vermont, in December 1933. Enlisted personnel and supervisors totaled more than 5,300 and occupied four large camps.