CSRS Special Provision Retirement
This is a special retirement category for air traffic controllers, law enforcement officers, firefighters, nuclear materials couriers, Supreme Court Police and Capitol Police. Here are the age and service requirements for eligibility:
Age Years of Service
Any age* 25
*Only air traffic controllers can retire at any age with 25 years of service as an air traffic controller.
CSRS Discontinued Service Retirement
In this case, your separation from service must be involuntary and not a removal for misconduct or delinquency. The age and service requirements for eligibility for this retirement category are as follows:
Age Years of Service
Any Age 25
CSRS Retirement for Disability
To be eligible for a disability-related retirement, you must be disabled for useful and efficient service in your current position and any other vacant position at the same grade or pay level within your commuting area and current agency for which you are qualified. You must have been disabled prior to your retirement, and the disability should be expected to last for more than one year. Eligibility for this retirement benefit can be at any age, with at least 5 years of service.
CSRS Deferred Annuity
If you leave Federal service before you meet the age and service requirements for an immediate retirement benefit, you may be eligible for deferred retirement benefits. To obtain your deferred annuity you will have to complete OPM’s Form 1496A at http://www.opm.gov/Forms/pdf_fill/OPM1496A.pdf, and send it to the address listed on the form. The form has 9 pages of detailed instructions and general information about eligibility and payments. Contact OPM directly for any further assistance you may need. There is no reason to delay applying for the annuity beyond age 62. You should wait until 60 days prior to your 62nd birthday before you submit your application. OPM can be reached by calling toll-free 1 (888) 767-6738, or writing to: Office of Personnel Management, PO Box 45, Boyers, PA 16017.