; and (II) an individual 18 years of age or older to whom the provider furnishes items and services for the treatment of a condition that onset before such individual attained 18 years of age. . (b) Conforming amendments (1) Section 1902(a)(77) of the Social Security Act ( 42 U.S.C. 1396a(a)(77) ) is amended by inserting enrollment, after screening, . (2) Section 1902(kk) of such Act ( 42 U.S.C. 1396a(kk) ), as amended by subsection (a), is further amended— (A) in the subsection heading, by inserting Enrollment, after Screening, ; and (B) in paragraph (9), by striking Nothing and inserting Except as provided in paragraph (10), nothing . (3) Section 2107(e)(1)(G) of such Act ( 42 U.S.C. 1397gg(e)(1)(G) ) is amended by inserting enrollment, after screening, . (c) Effective date (1) In general Except as provided in paragraph (2), the amendments made by this section take effect on January 1, 2021. (2) Exception for State legislation In the case of a State plan under title XIX of the Social Security Act ( 42 U.S.C. 1396 et seq.) or a State child health plan under title XXI of such Act ( 42 U.S.C. 1397aa et seq.) which the Secretary of Health and Human Services determines requires State legislation (other than legislation appropriating funds) in order for the plan to meet the additional requirements imposed by the amendments made by this section, such State plan or State child health plan shall not be regarded as failing to comply with the requirements of such title XIX or title XXI, respectively, solely on the basis of its failure to meet these additional requirements before the first day of the first calendar quarter beginning after the close of the first regular session of the State legislature that begins after the date of the enactment of this Act. For purposes of the previous sentence, in the case of a State that has a 2-year legislative session, each year of such session shall be deemed to be a separate regular session of the State legislature.