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Keeping up to date with Imray charts and books

Free corrections and supplements for the latest editions

Find book supplements for the latest editions

We publish annual updates (supplements) for most Imray pilot guides.  Search here, or they can be downloaded from the product pages on our website. 

Updating and correcting Imray charts

For information on how to update Imray charts, see our FAQs here

Click to download a list of all chart edition and printing dates.

Norie's Bulletin of Corrections - download a non-cumulative list of corrections for all Imray charts published each quarter

Symbols guides and chartlets

Click the links below to download PDF guides:

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) April 2024

Orford Haven (River Ore entrance) April 2024

List of all book edition and printing dates

User observations and reports

We are grateful to reports of amendments or changes that should be applied to keep our books and charts up to date.

Please email or write to us at ilnw@imray.com with any comments or observations giving specific information regarding chart or book edition date.