; and (bb) a vacancy in the Rescue Committee exists. (5) Administration (A) In general With respect to each Rescue Committee, to enable the Rescue Committee to exercise the powers, functions, and duties of the Rescue Committee, there are authorized to be disbursed by the Senate the actual and necessary expenses of the Rescue Committee approved by the co-chairs of the Rescue Committee, subject to the rules and regulations of the Senate. (B) Expenses With respect to each Rescue Committee, in carrying out the functions of the Rescue Committee, the Rescue Committee is authorized to incur expenses in the same manner and under the same conditions as the Joint Economic Committee is authorized under section 11(d) of the Employment Act of 1946 ( 15 U.S.C. 1024(d) ). (C) Quorum With respect to each Rescue Committee, 7 members of the Rescue Committee shall constitute a quorum for purposes of voting, meeting, and holding hearings. (D) Voting (i) Proxy voting No proxy voting shall be allowed on behalf of any member of a Rescue Committee. (ii) Congressional budget office estimates (I) In general The Director of the Congressional Budget Office shall, with respect to the legislative language of a Rescue Committee under paragraph (3)(B)(i)(II), provide to the Rescue Committee— (aa) estimates of the legislative language in accordance with sections 308(a) and 201(f) of the Congressional Budget Act of 1974 ( 2 U.S.C. 639(a) and 601(f))