; meetings The Immigration Representation Advisory Board shall— (1) establish bylaws; (2) select a chairperson from among its members; (3) appoint other such officers as it deems necessary; and (4) meet not less frequently than once each year. III Authorization of appropriations 301. Authorization of appropriations (a) In general There are authorized to be appropriated to the Office of Immigration Representation, out of any money in the Treasury that is not otherwise appropriated, such sums as may be necessary to carry out this Act, and the amendments made by this Act, including— (1) establishing and operating the Office; and (2) providing continuing education and training of counsel providing representation under section 292 of the Immigration and Nationality Act, as amended by section 101. (b) Availability of funds If so specified in appropriation Acts, amounts appropriated pursuant to subsection (a) shall remain available until expended. Payments from such appropriations shall be made under the supervision of the Director of the Office of Immigration Representation. 302. Minimum funding for the Office of Immigration Representation (a) In general The amount appropriated to the Office of Immigration Representation for each fiscal year shall be not less than the amount equal to the sum of the combined amount appropriated for Federal immigration enforcement and prosecution agencies and the Office, multiplied by the prosecution-defense ratio calculated pursuant to subsection (b). (b) Calculation of prosecution-Defense ratio (1) In general Except as provided in paragraph (2), the Office of Management and Budget shall calculate the prosecution-defense ratio, for purposes of subsection (a), by dividing the sum appropriated to the Office of Immigration Representation account for the most recently concluded fiscal year by the combined amount appropriated for such fiscal year for Federal immigration enforcement and prosecution agencies, including amounts appropriated for— (A) U.S. Immigration and Customs Enforcement