(a) The first sentence of section 202(a),¹ this section, and sections 3001, 3002, 3074, 3075, and 3076 of this title shall take effect July 26, 1947.

(b) Except as provided in subsection (a), the provisions of this chapter shall take effect on whichever of the following days is the earlier: The day after the day upon which the Secretary of Defense first appointed takes office, or the sixtieth day after July 26, 1947.