This publication contains the Federal statutes and regulations applicable to court orders affecting retirement benefits under the Civil Service Retirement Systems (CSRS) and the Federal Employees Retirement Systems (FERS). The United States Office of Personnel Management (OPM) administers both of these retirement systems. CSRS covers most employees first hired before 1984. FERS generally covers employees first hired by the Federal Government after 1983, plus other Federal employees who elected to transfer from CSRS to FERS. The publication also includes the statutes and regulations describing the conditions under which a former spouse's Federal Employee Health Benefits (FEHB) coverage may be continued after a divorce, as well as the statue under which an employee or former employee may make an irrevocable assignment of his or her Federal Employees' Group Life Insurance (FEGLI) coverage. This publication is for attorneys and others who are involved in the preparation of divorce and separation agreements that involve a current or former employee, including an annuitant, of the Federal Government who is or was covered by the CSRS or FERS.