Section 525.302 - 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 whose property and interests in property are blocked pursuant to § 525.201 , the earlier of the date of actual or constructive notice that such person's property and interests in property are blocked;(2) With respect to transactions prohibited by § 525.202 , December 15, 2023.(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. 86 FR 29197 , 6/1/2021; 89 FR 89483 , 11/13/2024