Those who are involuntarily separated, other than for misconduct or delinquency, and have at least 25 years of service or are at least age 50 with 20 years of service, will be entitled to an immediate annuity. (Under CSRS/CSRS-Offset, that annuity will be reduced by 2 percent for each year the employee is under age 55. There is no reduction under FERS.) At least five years of that service must be civilian service. CSRS/CSRS-Offset employees must have been employed under CSRS for at least one year out of the last two years preceding retirement. There is no such requirement under FERS.