Skip to page content

USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

United States Department of Transportation United States Department of Transportation

Safety Alerts, Charting Notices & Data Product Notices

  • Safety Alerts (SA) are published to notify users of an error that was reported or discovered in one of our products. The specific product and effective date(s) are provided.
  • Charting Notices (CN) are published to notify users of a planned chart/publication enhancement and the effective date in which the enhancement will be implemented.
  • Data Product Notices (DPN) are published to notify users of a system outage. DPNs may also be used to notify users of a developmental upgrade to one of our digital products and the effective date in which the upgrade will be implemented.

In addition to the Safety Alerts and Charting Notices on this page, pilots and FAA Aeronautical Chart Agents may wish to view the most recent information available at:


Safety Alerts, Charting Notices & Digital Product Notices
Date Posted Affected Product(s) Effective Date Subject and Additional Information
Sep 12, 2025 XML (d-TPP_Metafile.xml) (2510) US Terminal Procedures Publications, Vol SE3 Index Oct 2, 2025 d-TPP XML incorrectly indicates that the LAHSO at Lakeland Linder INTL, Lakeland, FL (LAL) was changed (C) vs. Deleted (D). See the 25-06 TERM Safety Alert (PDF) for complete information.
Aug 25, 2025 Digital Obstacle File (DOF), Daily DOF, and Daily Change File Sep 22, 2025 Digital Obstacle File (DOF), the Daily DOF (DDOF), and Daily Change File will reflect approximately 9000 obstacle studies. See the 25-01 DOF Data Product Notice (PDF) for complete information.
Aug 25, 2025 digital-Terminal Procedures Publication (d-TPP) (2508 & 2509), U.S. Terminal Procedures Publication (TPP) Vol SC-1 and Chart Supplement South Central U.S Aug 7, 2025 Corrected Airport Diagram for Bill and Hillary Clinton Ntl/Adams Fld (LIT), Little Rock, Arkansas. See the 25-05 TERM Safety Alert (PDF) for complete information.
Aug 14, 2025 Visual Chart Viewer and VFR Chart Tile Service Aug 7, 2025 Visual Chart Viewer Resolution Issues. See the 25-01 VIS Data Product Notice (PDF) for complete information.
Aug 13, 2025 Aeronautical Chart Users' Guide Aug 7, 2025 Change in Publication Schedule beginning 7 AUG 2025. See the 25-05 VIS Charting Notice (PDF) for complete information.
Aug 13, 2025 All Aeronautical Products and Digital Services Aug 7, 2025 Discontinuation of selected charting products and services beginning 7 AUG 2025. See the 25-04 VIS Charting Notice (PDF) for complete information.
Aug 11, 2025 Users of the 56-Day NASR Subscriber File and Aeronautical Data Delivery Service (ADDS) Aug 7, 2025 Incorrect legal description for the Tarboro Class E5 airspace. See the 25-08 NASR Safety Alert (PDF) for complete information.
Jul 15, 2025 NASR 28-Day Subscriber Files Aug 7, 2025 Airway T545 Segment Distance value omitted (.txt and .csv). See the 25-07 NASR Safety Alert (PDF) for complete information.
Jul 3, 2025 U.S. Terminal Procedures Publications, Digital-Terminal Procedures Publications and Chart Supplement Pacific Oct 2, 2025 Removal of Redundant Communications Data from Instrument Approach Procedure (IAP) charts. See the 25-06 TERM Charting Notice (PDF) for complete information.
June 16, 2024 Aeronautical Data Delivery Service (ADDS) Aug 7, 2025 Airport Diagrams - Open Data Release. See the 25-01 ADDS Data Product Notice (PDF) for complete information.
May 14, 2025 digital-Terminal Procedures Publications, Digital-Terminal Procedures Publications and Chart Supplement Pacific Aug 7, 2025 Removal of Circling Icon from Instrument Approach Procedure (IAP) charts and RADAR Instrument Approach Minimums. See the 25-05 TERM Charting Notice (PDF) for complete information.
Apr 8, 2025 digital-Terminal Procedures Publications, Digital-Terminal Procedures Publications and Chart Supplement Pacific June 12, 2025 Removal of 67:1 Slope Obstacles on Instrument Approach Procedures (IAPs) and Removal of Highest Obstacles on IAPs and Airport Diagrams (ADs). See the 25-04 TERM Charting Notice (PDF) for complete information.
Mar 13, 2025 Baltimore-Washington Helicopter Route Chart Mar 13, 2025 Ronald Reagan Washington International Airport (DCA) Helicopter Route Changes. See the 25-02 VIS Charting Notice (PDF) for complete information.
Mar 11, 2025 Houston VFR Sectional and Terminal Area Aeronautical Charts Apr 17, 2025 Wildlife Refuge Name Change. See the 25-01 VIS Charting Notice (PDF) for complete information.
Feb 24, 2025 digital-Terminal Procedures Publications (d-TPP) U.S. Terminal Procedures Publications Jun 12, 2025 IAP Airport Sketches - Taxiway Data Removal See the 25-02 TERM Charting Notice (PDF) for complete information.
Oct 7, 2024 Aeronautical Data Delivery Service (ADDS) Oct 7, 2024 Airport Diagrams - Test/Sample Data Release. See the 24-01 ADDS Data Product Notice (PDF) for complete information.
Apr 24, 2024 28-Day NASR Subscriber Files May 16, 2024 NAVAID LNK LOM (MARKER/NDB) reflects an error in status. See the 24-08 NASR Safety Alert (PDF) for complete information.
Sep 21, 2021 Consumers of SNOWTAMS stored by the United States Sep 21, 2021 Effective immediately, until further notice, the United States NOTAM System will not be able to ingest, store, display, and disseminate international SNOWTAMs issued in the new ICAO SNOWTAM format. See the 21-02 USNOF Safety Alert (PDF) for complete information.

Page last modified: