; but (II) the vote on passage shall be on the covered joint resolution of the other House. (B) Treatment of a covered joint resolution of other house If one House fails to introduce a covered joint resolution under this section, the covered joint resolution of the other House shall be entitled to expedited floor procedures under this section. (C) Treatment of companion measures If, following passage of the covered joint resolution in the Senate, the Senate then receives a companion measure from the House of Representatives, the companion measure shall not be debatable. (c) Rules of senate and house of representatives Subsection (b) is enacted by Congress— (1) as an exercise of the rulemaking power of the Senate and the House of Representatives, respectively, and as such are deemed a part of the rules of each House, respectively, but applicable only with respect to the procedure to be followed in that House in the case of legislation described in those sections, and supersede other rules only to the extent that they are inconsistent with such rules