Section 542.304 - 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 prohibited transfers or other dealings in blocked property and interests in property of the Government of Syria, as defined in § 542.308 , 12:01 a.m. eastern daylight time, August 18, 2011;(2) With respect to a person whose property and interests in property are blocked pursuant to § 542.201(a)(5) , 1 p.m. eastern daylight time, April 29, 2011;(3) With respect to a person whose property and interests in property are blocked pursuant to § 542.201(a)(7) , 1 p.m. eastern daylight time, May 18, 2011;(4) With respect to a person whose property and interests in property are blocked pursuant to § 542.201(a)(9) , 12:01 a.m. eastern daylight time, April 23, 2012;(5) With respect to a person whose property and interests in property are otherwise blocked pursuant to § 542.201 , the earlier of the date of actual or constructive notice that such person's property and interests in property are blocked;(6) With respect to the transactions prohibited by §§ 542.206 through 542.210 , 12:01 a.m. eastern daylight time, August 18, 2011; and(7) With respect to the transactions prohibited by § 542.212, the earlier of the date of actual or constructive notice that such prohibitions apply to the foreign person determined to be subject to the prohibitions in § 542.212.(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, or a notice of the imposition of a prohibition imposed pursuant to § 542.212, is published in the FEDERAL REGISTER. 89 FR 48318 , June 6, 2024