; and (2) transmit to the appropriate congressional committees a certification of each determination with respect to a foreign financial institution, including an Iranian financial institution, made under paragraph (1). (b) Form A certification described in subsection (a)(2) shall be submitted in unclassified form, but may contain a classified annex. (c) Determination of significant transaction or transactions and significant financial services For purposes of this section, a transaction or transactions shall be determined to be significant and financial services shall be determined to be significant in accordance with section 561.404 of title 31, Code of Federal Regulations. 3. Determination and certification of whether certain foreign persons have supported covered persons (a) In general Not later than 180 days after the date of the enactment of this Act, and every 180 days thereafter for a period not to exceed 5 years, the President shall— (1) with respect to each foreign person listed in Attachment 3 or Attachment 4 to Annex II of the Joint Comprehensive Plan of Action, determine whether the foreign person has, on or after January 30, 2016, knowingly, directly or indirectly, materially assisted, sponsored, or provided financial, material, or technological support for, or goods or services in support of any person described in section 4; and (2) transmit to the appropriate congressional committees a certification of each determination with respect to a foreign person made under paragraph (1). (b) Form A determination described in subsection (a)(2) shall be submitted in unclassified form, but may contain a classified annex. 4. Covered persons A person described in this section is— (1) an organization that is designated by the Secretary of State as a foreign terrorist organization pursuant to section 219 of the Immigration and Nationality Act ( 8 U.S.C. 1189 ); (2) a foreign person the property or interests in property of which are blocked pursuant to— (A) Executive Order 13224 (September 23, 2001