(a) This subpart contains regulations of the Office of Personnel Management (OPM) to supplement —   (1) 5 U.S.C. 8412(d) and (e), which establish special retirement eligibility for law enforcement officers, firefighters, air traffic controllers, and nuclear materials couriers employed under the Federal Employees Retirement System (FERS);   (2) 5 U.S.C. 8422(a), pertaining to deductions;   (3) 5 U.S.C. 8423(a), pertaining to Government contributions; and   (4) 5 U.S.C. 8425, pertaining to mandatory retirement.

(b) The regulations in this subpart are issued pursuant to the authority given to OPM in 5 U.S.C. 8461(g) to prescribe regulations to carry out the provisions of 5 U.S.C. chapter 84 and in 5 U.S.C. 1104 to delegate authority for personnel management to the heads of agencies.