34 Pa. Code § 127.663 – UR system.

(a) UROs or PROs shall have a UR system which shall consist of documented criteria, standards and guidelines for the conduct of reviews undertaken under the act and this subchapter.
(b) The UR system shall ensure that the reviews undertaken under the act and this subchapter are impartial reviews.

This section cited in 34 Pa. Code § 127.401 (relating to purpose/review of medical treatment).