31 CFR 510.302 - Effective date.
The term effective date refers to the effective date of the applicable prohibitions and directives contained in this part as follows:
(b) With respect to a person listed in the Annex to E.O. 13551, 12:01 p.m. eastern daylight time, August 30, 2010;
(c) With respect to a person whose property and interests in property are otherwise blocked pursuant to E.O. 13551, the earlier of the date of actual or constructive notice that such person's property and interests in property are blocked; or
(d) With respect to E.O. 13570, 12:01 a.m. eastern daylight time, April 19, 2011.