After World War II, the parent 80th Division was reactivated as airborne, and the 317th was redesignated on 15 July 1946 as the 317th Parachute Infantry, an element of the 80th Airborne Division.
Switching from a focus on combat to a training role, the unit was reorganized and redesignated on 6 March 1959 as the 317th Regiment, an element of the 80th Division (Training), with headquarters at Washington, D.C. (The location of the headquarters changed on 1 December 1960 to Riverdale, Maryland.)