5 CFR 2.1 : Administrative Personnel (§ 1.1 To Parts 10003-10049) — (§ 1.1 To Parts 631-699) — Office Of Personnel Management (§ 1.1 To Parts 631-699) — Civil Service Rules (§ 1.1 To § 10.3) — Appointment Through The Competitive System (Rule Ii) (§ 2.1 To § 2.4) — Competitive examinations and eligible registers.