Keeping up to date with Imray charts and books

Free corrections and supplements for the latest editions

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

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 2023

Orford Haven (River Ore entrance) March 2023

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

User observations

Please email or write to us with any comments or observation giving specific information regarding chart or book edition date.