42 CFR § 426.517
CMS' statement regarding new evidence
June 11, 2020
(a) CMS may review any new evidence that is submitted, regardless of whether the Board has stayed the proceedings, including but not limited to new evidence:
(1) Submitted with the initial complaint;
(2) Submitted with an amended complaint;
(3) Produced during discovery;
(4) Produced when the Board consults with scientific and clinical experts; and
(5) Presented during any hearing.
(b) CMS may submit a statement regarding whether the new evidence is significant under §426.340, by a deadline set by the Board.