Find out more about the types of IMCA documents and our definitions.

Our Guidance Register also lists documents in each series, with status, latest revision and a website link for details and downloading.

    • Glossary
    • Introduction
    • Tide Theory
    • Geodetic Reference Systems and Tidal Datums
    • Tides from GNSS
    • Quality Assurance and Quality Control
    • References
    Date: Reason: Revision:
    Date:March 2024 Reason:Update of preface, reference links and layout; no change to content Revision:Rev. 0.1
    Date:April 2021 Reason:Initial publication Revision:Rev. 0