Any such motion in the Senate shall be debatable. In any case in which such point of order is sustained against a conference report (or Senate amendment derived from such conference report by operation of this subsection), no further amendment shall be in order. (4) Supermajority waiver and appeal In the Senate, this subsection may be waived or suspended only by an affirmative vote of three-fifths of the Members, duly chosen and sworn. An affirmative vote of three-fifths of the Members of the Senate, duly chosen and sworn shall be required to sustain an appeal of the ruling of the Chair on a point of order raised under this subsection. (5) Determination For purposes of this subsection, budgetary levels shall be determined on the basis of estimates provided by the Chairman of the Committee on the Budget of the Senate. (c) Point of order in the House of Representatives (1) In general A provision in a bill or joint resolution making appropriations for a fiscal year that proposes a CHIMP that, if enacted, would cause the amount available for obligation during the fiscal year from the Crime Victims Fund to be less than the 3-year average amount shall not be in order in the House of Representatives. (2) Amendments and conference reports It shall not be in order in the House of Representatives to consider an amendment to, or a conference report on, a bill or joint resolution making appropriations for a fiscal year if such amendment thereto or conference report thereon proposes a CHIMP that, if enacted, would cause the amount available for obligation during the fiscal year from the Crime Victims Fund to be less than the 3-year average amount. (3) Determination For purposes of this subsection, budgetary levels shall be determined on the basis of estimates provided by the Chairman of the Committee on the Budget of the House of Representatives. . (c) Technical and conforming amendment The table of contents in section 1(b) of the Congressional Budget Act of 1974 is amended by inserting after the item relating to section 428