Civil Service Retirement System. This covers most employees of the U.S. Government hired prior to January 1, 1984. CSRS employees are not covered by, nor do they contribute to, Social Security. Voluntary retirement eligibility is age 55 with 30 years of service, or age 60 with 20 years of service, or age 62 with 5 years of service.

The Civil Service Retirement System.

Civil Service Retirement System. retirement coverage for permanent Federal employees prior to 1/1/84 .

Cooperative State Research Service, the former name of an agency of USDA in charge of research funded in part by federal appropriation under cooperative agreements with organizations (mostly land-grant universities). CSRS was the agency where the LISA Program was initiated; it is currently called CSREES.

Contract Suitability Reporting System