; (ii) the authority provided under section 506 of the Foreign Assistance Act of 1961 ( 22 U.S.C. 2318 ); (iii) the authority provided in section 333 of title 10, United States Code; (iv) any other authorities available to the Secretary of Defense under title 10 of the United States Code. (E) An analysis of the potential for the United States Government to facilitize additional production capacity or purchase additional Harpoon missiles for future provision under section 506 of the Foreign Assistance Act of 1961 ( 22 U.S.C. 2318 ). (c) Congressional briefing (1) In general Not later than 180 days after the date of the enactment of this Act and every 180 days thereafter through December 31, 2027, the Secretary of Defense and Secretary of State shall jointly provide the congressional defense committees, the Committee on Foreign Affairs of the House of Representatives, and the Committee on Foreign Relations of the Senate a briefing on the current status of United States-provided security assistance to Taiwan, including— (A) a list of existing cases for defense articles and services to be provided to Taiwan utilizing the authorities described in paragraph (2), including, with respect to a defense item or service planned or anticipated to be provided— (i) a narrative description of the item or service; (ii) the total value of the item or service; (iii) the lead program office involved in the provision of the item or service; and (iv) the vendor of the item or service; (B) the estimated delivery schedule for each case identified under subparagraph (A); (C) an identification of any case identified under subparagraph (A) that has been delayed by more than 3 months from the original estimated delivery schedule; (D) any actions the Department of State and the Department of Defense have identified to prevent delays or accelerate the delivery of any case identified under subparagraph (A)