; and (bb) for purposes of subclause (II) of clause (ii), such a lesser cost-sharing requirement that the Secretary determines will likely significantly incentivize the utilization of covered generic drugs and covered biosimilar biological products on the cost-sharing tier required for the formulary under subclause (I) of such clause over covered part D drugs on the cost-sharing tier for specialty brand drugs on such formulary. (III) Specialty brand drug The term specialty brand drug means a brand drug for which the wholesale acquisition cost is greater than a threshold specified by the Secretary. . (b) Conforming amendment Section 1860D–2(b)(2)(B) of the Social Security Act ( 42 U.S.C. 1395w–102(b)(2)(B) ) is amended by inserting before the period the following: and section 1860D–4(b)(3)(J) .