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 Civilian Conservation Corps (also called the CCC, the 3Cs, and the Tree Army) was a work-relief program designed for young men between 17 and 28 years of age. Employing over 3 million men in its lifetime, the CCC was originally created under the Emergency Conservation Work Act and was signed into law March 31, 1933.