---
kind: "section"
citation: "31 C.F.R. § 528.304"
title: "31"
number: "528.304"
heading: "Effective date."
url: "https://uscodex.org/cfr/31/528.304"
---

# §528.304. 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. 14203, 12:01 a.m. eastern standard time, February 12, 2025.
  - (2) With respect to a person whose property and interests in property are otherwise blocked pursuant to [§ 528.201](/cfr/31/528.201.md), the earlier of the date of actual or constructive notice that such person's property and interests in property are blocked.
- (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. 1601-1651, 1701-1706; 28 U.S.C. 2461 note (Pub. L. 101-410, 104 Stat. 890, as amended); E.O. 14203, 90 FR 9369.

### Source

Source: 90 FR 28013, July 1, 2025, unless otherwise noted.