19 U.S. Code § 2013 - Effective date of proclamations

(a) Retroactive effect; authority of President
Subject to subsection (b) of this section, the President is authorized, notwithstanding section 1514 of this title or any other provision of law, to give retroactive effect to any proclamation issued pursuant to section 2011 of this title as of the earliest date after January 17, 1965, which he determines to be practicable.
(b) Filing of request with customs officer
In the case of liquidated customs entries, the retroactive effect pursuant to subsection (a) of this section of any proclamation shall apply only upon request therefor filed with the customs officer concerned on or before the 90th day after the date of such proclamation and subject to such other conditions as the President may specify.

Source

(Pub. L. 89–283, title II, § 203,Oct. 21, 1965, 79 Stat. 1018.)

The table below lists the classification updates, since Jan. 3, 2012, for this section. Updates to a broader range of sections may be found at the update page for containing chapter, title, etc.

The most recent Classification Table update that we have noticed was Tuesday, August 13, 2013

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19 USCDescription of ChangeSession YearPublic LawStatutes at Large

 

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