; and (C) mitigate any adverse impact that the Secretary determines could affect beneficiary health. . 4. Implementation of testing and expansion of models with congressional inaction Section 1115A(d) of the Social Security Act ( 42 U.S.C. 1315a(d) ) is amended by adding at the end the following new paragraph: (4) Implementation of testing and expansion of models with congressional inaction (A) The Secretary shall transmit a proposal for the testing, expansion, or modification of a model under subsections (b) and (c), including a proposed effective date and a summary of the determinations and certification made under paragraphs (1) through (3) of subsection (c), if applicable, to the Committee on Ways and Means and the Committee on Energy and Commerce of the House of Representatives and to the Committee on Finance and the Committee on Health, Education, Labor, and Pensions of the Senate. (B) The testing, expansion, or modification of a model proposed in a report submitted under subparagraph (A) shall be carried out by the Secretary if Congress does not, within 45 days of receiving such report, pass a joint resolution disapproving of the proposed testing or expansion in accordance with the following procedure: (i) The succeeding subparagraphs of this paragraph are enacted by Congress as an exercise of the rulemaking power of the Senate and the House of Representatives, respectively, and as such they shall be deemed a part of the rules of each House, respectively, but applicable only with the respect to the procedure to be followed in that House in the case of resolutions described in subparagraph (B). They shall supersede other rules only to the extent that they are inconsistent therewith. They are enacted with full recognition of the constitutional right of either House to change the rules (so far as relating to the procedure of that House) at any time, in the same manner and to the same extent as in the case of any ruse of that House. (ii) For the purpose of the succeeding paragraphs of this subsection,