In adopting the procedures for review of matters described in § 457.1130, a State must ensure that—

(a) Reviews are conducted by an impartial person or entity in accordance with § 457.1150;

(b) Review decisions are timely in accordance with § 457.1160;

(c) Review decisions are written; and

(d) Applicants and enrollees have an opportunity to—

(1) Represent themselves or have representatives of their choosing in the review process;

(2) Timely review their files and other applicable information relevant to the review of the decision;

(3) Fully participate in the review process, whether the review is conducted in person or in writing, including by presenting supplemental information during the review process; and

(4) Receive continued enrollment and benefits in accordance with § 457.1170.