; and (B) has provided reliable assurances that the person will not engage in any conduct described in subsection (a) in the future. (2) Notification Not later than 30 days after making a determination under paragraph (1), the President shall submit to the appropriate congressional committees and leadership a report on the determination. (d) Waiver authority (1) In general The President may waive the imposition of sanctions under this section, on a case-by-case basis and for a period not to exceed 180 days per waiver, with respect to a foreign person or agency or instrumentality of a foreign state, as the case may be, if the President certifies in writing to the appropriate congressional committees that such waiver is vital to the national security interests of the United States or would ensure the delivery of humanitarian assistance such as medicine, agricultural products, food, or fuel. (2) Briefings Not later than 30 days after issuing a waiver under paragraph (1) with respect to a foreign person or agency or instrumentality of a foreign state, and every 180 days thereafter for such period of time as the waiver remains in effect, the President shall provide to the appropriate congressional committees a briefing on the status of the involvement of the foreign person or agency or instrumentality of a foreign state in activities described in this section. . (b) Effective date The amendment made by subsection (a) shall take effect on the date that is 90 days after the date of the enactment of this Act. (c) Regulatory authority (1) In general Not later than 180 days after the date of the enactment of this Act, the President shall prescribe regulations as necessary for the implementation of the amendment made by subsection (a). (2) Notification to Congress Not later than 10 days prior to prescribing regulations under paragraph (1), the President shall notify the appropriate congressional committees and leadership (as defined in section 7203 of the Fentanyl Sanctions Act ( 21 U.S.C. 2302 )) with respect to the