Regulations and Government
FIS-B Notams Not a Complete List, FAA Warns
FIS-B Notams are limited to those issued in the past 30 days, even though older ones might still be active.

Notams received via Flight Information Systems–Broadcast (FIS-B) over the ADS-B universal access transceiver (UAT) datalink network might be incomplete, the FAA is warning pilots. In a recent Information for Operators (InFO) bulletin, the agency said FIS-B Notams are limited to those issued in the past 30 days, even though older ones might still be active.