; (ii) technical advisers and experts provided for under chapter 31 of the USMCA; (iii) binational panels and extraordinary challenge committees established under section D of chapter 10 of the USMCA; and (iv) binational panels and extraordinary challenge committees established under NAFTA for matters covered by article 34.1 of the USMCA (relating to transition from NAFTA). (3) Treatment of office under Freedom of Information Act The office established or designated under paragraph (1) shall not be considered an agency for purposes of section 552 of title 5, United States Code. (b) Authorization of appropriations There are authorized to be appropriated for each fiscal year after fiscal year 2020 to the Department of Commerce $2,000,000 for— (1) the operations of the office established or designated under subsection (a)(1); and (2) the payment of the United States share of the expenses of— (A) panels established under chapter 31 of the USMCA, including under Annex 31–A (relating to the Facility-Specific Rapid Response Labor Mechanism); (B) binational panels and extraordinary challenge committees established under section D of chapter 10 of the USMCA