2018—Pub. L. 115–282 renumbered section 563 of this title as this section.

2016—Subsec. (a). Pub. L. 114–328 substituted “The Commandant shall maintain” for “Not later than 180 days after the date of enactment of the Coast Guard Authorization Act of 2010, the Commandant shall commence implementation of”.

2010—Pub. L. 111–330 amended Pub. L. 111–281, § 402(a), which enacted this section.

Pub. L. 111–330, § 1, Dec. 22, 2010, 124 Stat. 3569, provided that the amendment made by section 1(4) is effective with the enactment of Pub. L. 111–281.