an appeal of the ruling of the Chair on a point of order raised under this subsection. (3) Definition of an emergency designation For purposes of paragraph (1), a provision shall be considered an emergency designation if it designates any item as an emergency requirement pursuant to this subsection. (4) Form of the point of order A point of order under paragraph (1) may be raised by a Senator as provided in section 313(e) of the Congressional Budget Act of 1974 ( 2 U.S.C. 644(e) ). (5) Conference reports When the Senate is considering a conference report on, or an amendment between the Houses in relation to, a bill, upon a point of order being made by any Senator pursuant to this section, and such point of order being sustained, such material contained in such conference report shall be stricken, and the Senate shall proceed to consider the question of whether the Senate shall recede from its amendment and concur with a further amendment, or concur in the House amendment with a further amendment, as the case may be, which further amendment shall consist of only that portion of the conference report or House amendment, as the case may be, not so stricken. 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. (f) Criteria (1) In general For purposes of this section, any provision is an emergency requirement if the situation addressed by such provision is— (A) necessary, essential, or vital (not merely useful or beneficial)