System Alerts & Notifications

Active Warnings

    Effective Thursday, May 1, 2025 from 6:00 AM to Thursday, May 1, 2025, 11:00 AM: Tower Construction Notification System (TCNS) and E-106 Systems Down for Scheduled Maintenance
    Effective Date:
    -
    Notification System:
    Tower Construction Notifications (TCNS)

    Universal Licensing System, (including Application Search, License Search, License Manager, Tower Construction Notification System, E-106 System, Antenna Structure Registration Online Filing, ASR Application Search, ASR Registration Search, TOWAIR and all ULS Specialized Searches) will be down for scheduled maintenance starting at 6:00 AM EDT on Thursday, May 1, 2025 until 11:00 AM EDT Thursday, May 1, 2025.