; (3) in item (bb), as so redesignated, by striking the period at the end and inserting ; and ; and (4) by adding at the end the following new subclause: (II) all claims that an individual seeks to aggregate are included in the same request for an aggregated appeal. . (d) Effective date The amendments made by this section shall take effect on January 1, 2021. 3. Remanding appeals to the redetermination level with the introduction of new evidence (a) In general Section 1869(b)(3) of the Social Security Act ( 42 U.S.C. 1395ff(b)(3) ) is amended by striking A provider of services and all that follows through the period and inserting the following new subparagraphs: (A) Remand upon submission of new evidence (i) In general Except as provided in subparagraph (B), when a party to an appeal, other than an individual entitled to benefits under part A or enrolled under part B, or both, or the Centers for Medicare & Medicaid Services or its contractors, introduces new evidence into the administrative record at a reconsideration conducted by a qualified independent contractor under subsection (c) or at any subsequent, higher level of appeal, the appeal shall be remanded for a new redetermination under subsection (a)(3), and any prior decisions (other than the initial determination made by the Secretary pursuant to subsection (a)(1)) on this appeal shall be vacated. (ii) Requirements For purposes of clause (i), except to the extent otherwise provided by the Secretary in regulations, the provisions that apply to redeterminations under subsection (a) and this subsection shall apply to redeterminations of appeals that are remanded. (B) Exceptions The provisions of subparagraph (A) shall not apply in instances where an adjudicator determines that introduction of new evidence is justified due to— (i) a lower-level adjudicator's inadvertent omission or erroneous decision to omit such evidence from the administrative record when that evidence was timely submitted to the lower-level adjudicator by a party to the appeal