Keeping Imray charts up to date
You can keep your charts up to date by downloading Imray Correction Notices.
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Charts superseded by new editions are canceled and cannot be corrected.
Printing History A list of all chart edition and printing dates
Norie's Bulletin of Corrections A non-cumulative list of corrections for all Imray charts published each quarter
Key to symbols and abbreviations used on Imray Charts
IALA Buoyage System Region A diagram
IALA Buoyage System Region B (Americas and Caribbean) diagram
Every spring, we publish chartlets of East Coast rivers based on Trinity House surveys.
Woodbridge Haven (River Deben entrance) March 2019
Orford Haven (River Ore entrance) March 2019
Book supplements with updates and corrections
Imray pilot books are updated and corrected at frequent intervals via downloadable supplements.
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User observations
Please email or write to us with any comments or observations giving specific information regarding chart or book edition date.