1659/25(GEN)
ArchivedReceived: 25 Jun 2025, 00:00Archived: 18 Jul 2025, 00:21Updated: 4 Nov 2026, 19:32
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- Geometry refscircle_radius
- Geometry phraseswithin
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CANCELLED ELECTRONIC NAVIGATIONAL CHART (ENC)
ADVISORY.
1. USERS OF NGA ENC PRODUCTS ARE ADVISED OF
POTENTIAL UNINTENDED ECDIS BEHAVIOR WHEN
PROCESSING CANCELLED CHARTS, INCLUDING POSSIBLE
REINSTALLATION OF RECENTLY CANCELLED CHARTS ON
SOME SYSTEMS WITHOUT OBVIOUS ERROR OR
WARNING MESSAGES.
USERS MAY REFERENCE NGAS ENC CATALOG (GLOBAL
OR REGIONAL PRODUCT LISTINGS) FOR A LIST OF
CANCELLED CHARTS WHICH SHOULD BE UNINSTALLED
FROM ECDIS.
NGAS GLOBAL ENC CATALOG IS AVAILABLE ON
HTTPS://MCDP.NGA.MIL, WITH REGIONAL ENC PRODUCT
LISTING SPREADSHEETS CONTAINED WITHIN EACH
REGIONS ZIP ON ESYNC, NGAS WEBSITES, AND
WORLDCOVER DVD.
USERS MAY FILTER PRODUCT LISTINGS FOR EDITION OF
CXL AND SORT BY ISSUE DATE TO SEE MOST RECENT
CANCELLATIONS.
CHARTS CANCELLED WITHIN THE LAST 90 DAYS ARE
ACTIVELY DISSEMINATED BY NGA AND MOST LIKELY
CANDIDATES FOR INADVERTENT REINSTALLATION.
NGA IS CONSULTING WITH THE USER COMMUNITY TO
ASSESS POSSIBLE CHANGES TO THE CANCELLED CHART
DISSEMINATION PROCESS TO MITIGATE THIS POTENTIAL
UNINTENDED ECDIS BEHAVIOR.
2. CANCEL THIS MSG 180001Z JUL 25.