Section 457.1250 - External quality review(a) Each State that contracts with MCOs, PIHPs, or PAHPs must follow all applicable external quality review requirements as set forth in §§ 438.350 (except for references to § 438.362 ), 438.352, 438.354, 438.356, 438.358 (except for references to § 438.6 ), 438.360 (only for nonduplication of EQR activities with private accreditation) and 438.364 of this chapter.(b) A State may amend an existing EQRO contract to include the performance of EQR-related activities and/or EQR in accordance with paragraph (a) of this section. 81 FR 27897 , May 6, 2016, as amended at 82 FR 40 , Jan. 3, 2017 81 FR 27852 , 5/6/2016; as amended at 82 FR 40 , 1/3/2017; 89 FR 41285 , 7/9/2024