• § 501. Definition

• § 502. Enlistment oath: who may administer

• § 503. Enlistments: recruiting campaigns; compilation of directory information

• § 504. Persons not qualified

• § 505. Regular components: qualifications, term, grade

• § 506. Regular components: extension of enlistments during war

• § 507. Extension of enlistment for members needing medical care or hospitalization

• § 508. Reenlistment: qualifications

• § 509. Voluntary extension of enlistments: periods and benefits

• § 510. Enlistment incentives for pursuit of skills to facilitate national service

• § 511. College First Program

• [§ 512. Renumbered § 12104]

• § 513. Enlistments: Delayed Entry Program

• § 514. Bounties prohibited; substitutes prohibited

• § 515. Reenlistment after discharge as warrant officer

• § 516. Effect upon enlisted status of acceptance of appointment as cadet or midshipman

• § 517. Authorized enlisted end strength: members in pay grades E–8 and E–9

• § 518. Temporary enlistments

• § 519. Temporary enlistments: during war or emergency

• § 520. Limitation on enlistment and induction of persons whose score on the Armed Forces Qualification Test is below a prescribed level

• [§ 520a. Repealed.

• § 520b. Applicants for enlistment: authority to use funds for the issue of authorized articles

• § 520c. Recruiting functions: provision of meals and refreshments