; (ii) for the year following the year specified in clause (i) and each subsequent year through the seventh year following the year specified in clause (i), the applicable percent specified in this subparagraph for the previous year increased by 10 percentage points; and (iii) for the eighth year following the year specified in clause (i) and each subsequent year, 80 percent. (C) Limitations and Secretarial authority (i) In general Payment may be made under this part for an individual for not more than one hearing aid per ear during a 48-month period. (ii) Secretarial authority (I) Authority to apply additional limitations The Secretary may apply additional limitations on the extent to which hearing aids are covered under this part, including through application of a prior authorization requirement and through application of criteria for a minimum level of hearing loss for coverage of an initial or replacement hearing aid. (II) Authority to modify coverage Notwithstanding any other provision of this title, if the Secretary determines appropriate, the Secretary may modify the coverage under this part of hearing aids to the extent that such modification is consistent with the recommendations of the United States Preventive Services Task Force. . (e) Effective date The amendments made by this section shall apply to services furnished on or after January 1 of the first year beginning at least six months after the date of the enactment of this Act.