of specific economic sectors in which such laborers are most commonly used. (b) Form The report required by subsection (a) shall be submitted in unclassified form, but may include a classified annex. (c) Briefing The President shall brief the appropriate congressional committees, in a classified setting if necessary, not later than 30 days after the delivery of the report required by subsection (a) on whether the entities identified in subsection (a)(2) meet the criteria for designation for the imposition of sanctions under applicable provisions of law. 407. Enhancing the review process for changes to sanctions and rulemaking Section 208 of the North Korea Sanctions and Policy Enhancement Act of 2016 ( 22 U.S.C. 9228 ) is amended by adding at the end the following: (e) Certification requirement for removal of certain persons from the list of specially designated nationals and blocked persons (1) In general On and after the date of the enactment of the Leverage to Enhance Effective Diplomacy Act of 2019 , the President may not remove a person described in paragraph (2) from the list of specially designated nationals and blocked persons maintained by the Office of Foreign Asset Control of the Department of the Treasury unless and until the President submits to the appropriate congressional committees a certification described in paragraph (3) with respect to the person. (2) Persons described A person described in this paragraph is a person the property and interests in property of which are blocked pursuant to the International Emergency Economic Powers Act ( 50 U.S.C. 1701 et seq.) under this Act, an applicable Executive order, or an applicable United Nations Security Council resolution. (3) Certification described A certification described in this paragraph with respect to a person is a certification that the person is not engaging in conduct— (A) for which the person was included on the list of specially designated nationals and blocked persons by the Office of Foreign Assets Control