45 C.F.R. § 172.603
(a) To initiate an appeal, an authorized representative of the Applicant QHIN or QHIN must submit electronically, in writing to ASTP/ONC, a notice of appeal that includes the date of the notice of appeal, the date of the decision being appealed, the Applicant QHIN or QHIN that is appealing, and the decision being appealed within fifteen (15) calendar days of the Applicant QHIN's or QHIN's receipt of the notice of:
(b) An authorized representative of an Applicant QHIN or QHIN must submit electronically to ASTP/ONC, within thirty (30) calendar days of filing the intent to appeal, the following: