(A) If the provider, facility, or provider of air ambulance services, as applicable, wishes to initiate a 30-business-day open negotiation period for purposes of determining the out-of-network rate, the provider, facility, or provider of air ambulance services must:
(1) Contact the appropriate person or office to initiate open negotiation generally within 30 business days of receiving the initial payment or notice of denial of payment, and
(
2) For disclosures required to be provided on or after the later of August 3, 2026 and the date that the open negotiation notice can be submitted through the Federal independent dispute resolution (IDR) portal, notify the Secretary of the Treasury (Secretary) as described under
§ 54.9816-8(b)(1)(i); and
(B) If the 30-business-day open negotiation period does not result in an agreement on the amount of payment, the provider, facility, or provider of air ambulance services may generally initiate the Federal IDR process within 4 business days after the end of the 30-business-day open negotiation period;