The Federal Aviation Administration has completed the first phase of a major overhaul of the U.S. Notices to Airmen (NOTAM) system, replacing decades-old infrastructure with a new cloud-based platform intended to improve reliability and reduce the risk of nationwide disruptions.
U.S. Transportation Secretary Sean P. Duffy announced that phase one was finished in April 2026, more than a year ahead of a timeline set under the previous administration. As part of this initial phase, the FAA shut down the legacy U.S. NOTAM System (USNS) and migrated it into the cloud, transitioning thousands of users to the new NOTAM Management Service, also referred to as the NOTAM Modernization Service.
According to the FAA, the new system is designed to provide a more modern and resilient backbone for distributing critical safety information to pilots and dispatchers, addressing vulnerabilities exposed by the nationwide ground stop triggered by a NOTAM system failure in January 2023.
The overhaul is being carried out in stages. A second phase, planned for later this year, will retire the remaining legacy platform, the Federal NOTAM Service (FNS). Once that transition is complete, the new NOTAM Management Service will serve as the single authoritative source for all U.S. NOTAMs within the National Airspace System.