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

    • Purpose

    • Scope and Summary of Guidelines

    • Part A - General Communications Guidance

    • Part B - Diving Operations

    • Part C - Lifting Operations

    • References

    Date: Reason: Revision:
    Date:March 2024 Reason:Refresh of page 2, reference links and layout; no changes to content Revision:Rev. 2.2
    Date:November 2023 Reason:Quality check; document map added; no change to content Revision:Rev. 1.1
    Date:June 2021 Reason:Further updating of references and adoption as an LR document Revision:Rev. 1
    Date:May 2019 Reason:Revised to make slight changes to section 4.1 Revision:Rev. 2.1
    Date:October 2018 Reason:Revised to include input from the geophysical survey sector Revision:Rev. 2
    Date:November 2023 Reason:Quality check; document map added; no change to content Revision:Rev. 1.1
    Date:June 2021 Reason:Further updating of references and adoption as an LR document Revision:Rev. 1
    Date:May 2019 Reason:Revised to make slight changes to section 4.1 Revision:Rev. 2.1
    Date:October 2018 Reason:Revised to include input from the geophysical survey sector Revision:Rev. 2
    Date:August 2016 Reason:Update of references; rewording of section 19 Revision:Rev. 0.1
    Date:June 2014 Reason:Revised to include input from the renewable energy sector Revision:Rev. 1
    Date:August 2010 Reason:Initial publication Revision:Rev. 0
    Date:March 2010 Reason:Initial publication Revision:Rev. 0