While no one likes to think about becoming disabled, it is important to understand disability coverage under the federal retirement programs as well as under Social Security.
The civil service and Social Security disability programs are integrated to an extent. This means that those who become disabled may not get full benefits under more than one system and that they must be very careful to protect their rights under each. In fact, employees under FERS and CSRS-Offset must apply to Social Security when they apply for federal retirement disability in order to assure that the benefits are coordinated.
Briefly, employees who become disabled during the course of their federal career may be entitled to a disability annuity. Under CSRS/CSRS-Offset, they must have completed at least five years of federal civilian service; under FERS, only 18 months. Also, while employed in a position covered by either CSRS/CSRS-Offset or FERS, they must have become disabled for “useful and efficient service” in both their current position and any other vacant position at the same grade or pay level for which qualified.
“Useful and efficient service” means:
either acceptable performance of the critical or essential elements of the position or the ability to perform at that level; and
satisfactory conduct or attendance.
Service that is not “useful or efficient” is a level of performance or attendance which, if it were to continue, would warrant denial of a within-grade increase, demotion or other remedial action.
Under Social Security, the rules are far more complicated. Social Security will look at whether you have worked long enough and recently enough, your age, and, if you are applying for benefits as a family member, your relationship to the worker. And you must be virtually unable to work at all.