2022—Subsecs. (e), (f). Pub. L. 117–263 added subsecs. (e) and (f).

2002—Subsec. (b)(2). Pub. L. 107–296 substituted “of Homeland Security” for “of Transportation”.

1999—Subsec. (b)(2). Pub. L. 106–65 inserted at end “If the number determined under this subsection with respect to a promotion zone within a grade (or grade and competitive category) is less than one, the board may recommend one such officer for promotion from below the zone within that grade (or grade and competitive category).”

1996—Subsec. (b)(1). Pub. L. 104–201 inserted “chief warrant officer, W–3,” after “promotion to the grade of” in first sentence.

1994—Subsec. (b)(2). Pub. L. 103–337, § 541(b)(3), inserted “and the Secretary of Transportation, when the Coast Guard is not operating as a service in the Navy,” after “Secretary of Defense”.

Subsec. (d). Pub. L. 103–337, § 501(a), inserted “(except for a warrant officer precluded from consideration under regulations prescribed by the Secretary concerned under section 577 of this title)” after “under consideration”.

Amendment by Pub. L. 107–296 effective on the date of transfer of the Coast Guard to the Department of Homeland Security, see section 1704(g) of Pub. L. 107–296, set out as a note under section 101 of this title.

Amendment by section 541(b)(3) of Pub. L. 103–337 effective on the first day of the fourth month beginning after Oct. 5, 1994, see section 541(h) of Pub. L. 103–337, set out as a note under section 571 of this title.

Section effective Feb. 1, 1992, see section 1132 of Pub. L. 102–190, set out as an Effective Date of 1991 Amendment note under section 521 of this title.