To waive the annuity buyback requirement under the Federal Employees Retirement Service with respect to certain law enforcement officers involuntarily called or retained on active duty, and for other purposes.

Allows a law enforcement officer who is involuntarily called or ordered to active duty or involuntarily retained on active duty for any period beginning on or after September 11, 2001, to receive credit for such period of active duty (as military service) under the Federal Employees Retirement System. Waives the requirement that such individuals deposit a specified percentage of basic pay received during such periods of military service to receive such credit.