10 U.S. Code § 1411. Rules of construction

(a)Construction of “First Became a Member”.—
For purposes of this chapter and other provisions of law providing for computation of retired or retainer pay of members of the uniformed services, a person shall be considered to first become a member of a uniformed service on the date the person is first enlisted, inducted, or appointed in a uniformed service.
(b)References in Tables.—
Section references in tables in this chapter are to sections of this title.