Treas. Reg. § 54.9816-5T
Preventing surprise medical bills for non-emergency services performed by nonparticipating providers at certain participating facilities (temporary).
eCFR amendment effective 2021-07-13 · in effect Jul 13, 2021 to Sep 13, 2021
Link to an amendment published at 86 FR 36950, July 13, 2021.