47 C.F.R. § 88.141
(b) IAM Process. NNA users seeking to transmit in the band must first obtain concurrence from the FAA for the requested use, and must ensure that any such operations comply with the scope of approval, terms, conditions, and restrictions of the FAA concurrence. Upon receipt of FAA concurrence, NNA users must submit to the FCC an online NNA registration form regarding the requested use, certifying that:
(4) Their IAM frequency assignment terminates immediately in the event a DFMS becomes operational prior to the end of the IAM frequency assignment.
Effective Date Note:At 90 FR 1395, Jan. 8, 2025, Part 88 was added, and § 88.141 was delayed indefinitely.