; regulations (1) In general The President may exercise all authorities provided under sections 203 and 205 of the International Emergency Economic Powers Act (50 U.S.C. 1702 and 1704) for purposes of carrying out this section. (2) Regulations Not later than 60 days after the date of the enactment of this Act, the President shall issue regulations or other guidance as may be necessary for the implementation of this section. (f) Waiver The President may waive, on a case-by-case basis and for a period of not more than 180 days, the application of sanctions under this section with respect to a foreign person only if, not later than 15 days prior to the date on which the waiver is to take effect, the President submits to the appropriate congressional committees a written determination and justification that the waiver is in the vital national security interests of the United States. (g) Humanitarian exemption The President may waive the application of any provision of this section if the President certifies in writing to the appropriate congressional committees that such a waiver is vital to facilitate the delivery of humanitarian aid and is consistent with the national security interests of the United States 15 days prior to the waiver taking effect. (h) Rule of construction The authority to impose sanctions under this section with respect to a foreign person is in addition to the authority to impose sanctions under any other provision of law with respect to a foreign person that directly or indirectly supports acts of international terrorism. 4. Imposition of measures with respect to foreign states providing support to Hamas, Palestinian Islamic Jihad and other Palestinian terrorist organizations (a) In general Not later than 180 days after the date of enactment of this Act, the President shall impose the measures described in subsection (c) with respect to a foreign state if the President determines that the foreign state, on or after the date of the enactment of this Act, engages in an activity described in