The term effective date refers to the effective date of the applicable prohibitions and directives contained in this part as follows:
(a) With respect to a person listed in the Annex to E.O. 13661 of March 16, 2014, 12:01 a.m. eastern daylight time, March 17, 2014; and
(b) With respect to a person whose property and interests in property are blocked pursuant to Sec. 589.201, is the earlier of the date of actual or constructive notice that such person's property and interests in property are blocked.