---
kind: "section"
citation: "31 C.F.R. § 551.305"
title: "31"
number: "551.305"
heading: "Effective date."
url: "https://uscodex.org/cfr/31/551.305"
---

# §551.305. Effective date.

- (a) The term effective date refers to the effective date of the applicable prohibitions and directives contained in this part as follows:
  - (1) With respect to a person listed in the Annex to E.O. 13536, as amended by E.O. 13620, 12:01 a.m. eastern daylight time, April 13, 2010;
  - (2) With respect to a person whose property and interests in property are otherwise blocked pursuant to [§ 551.201](/cfr/31/551.201.md), the earlier of the date of actual or constructive notice that such person's property and interests in property are blocked; and
  - (3) With respect to the prohibition set forth in § [551.207](/cfr/31/551.207.md), [2](/cfr/31/2.md):00 p.m. eastern daylight time, July 20, 2012.
- (b) For the purposes of this section, constructive notice is the date that a notice of the blocking of the relevant person's property and interests in property is published in the Federal Register.

## Notes

### Authority

Authority: 3 U.S.C. 301; 31 U.S.C. 321(b); 50 U.S.C. 1601 et seq., 1701 et seq.; 22 U.S.C. 287c; Pub. L. 101-410, 104 Stat. 890, as amended (28 U.S.C. 2461 note); E.O. 13536, 75 FR 19869, 3 CFR, 2010 Comp., p. 203; E.O. 13620, 77 FR 43483, 3 CFR, 2012 Comp., p. 281.

### Source

Source: 86 FR 22348, Apr. 28, 2021, unless otherwise noted.