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

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    • Introduction 

    • Diving Physics 

    • Diving Medicine and First Aid 

    • Environmental Conditions 

    • Communications 

    • Documentation 

    • Management and Planning 

    • Support Locations 

    • Gas Handling 

    • General Diving Procedures 

    • Surface Supplied Air Diving 

    • Surface Supplied Mixed Gas Diving 

    • Closed Bell Diving 

    • Chambers 

    • General Safety Requirements 

    • References 

    • Appendix 1 – IMCA Certification Schemes 

    • Appendix 2 – Maximum Bottom Time Limitation 

    • Appendix 3 – Weather Terminology and Classifications 

    • Appendix 4 – Vessel Hazard Drawings

    Date: Reason: Revision:
    Date:June 2024 Reason:Section 10.1 updated with tables 1 &2 from DMAC 07 Revision:Rev. 1.3
    Date:August 2016 Reason:Section 10.3 updated to incorporate AODC 020 (later replaced by IMCA D022) Revision:Rev. 1.2
    Date:April 2015 Reason:Sections 9.13, 14.34.2 and 15.21 updated Revision:Rev. 1.1
    Date:May 2014 Reason:To reflect changes in IMCA diving documentation Revision:Rev. 1
    Date:May 2000 Reason:Initial publication Revision:Rev. 0

IMCA documents

Find out more about the different types of document.

Our Guidance documents are categorised as follows:

  • Code of Practice – Its uniform application is recognised as essential for the safe and efficient conduct of marine contracting projects. IMCA expects the highest level of compliance with this category from its Members.

  • Recommended Practice – Its uniform application is recognised as necessary for the safe and efficient conduct of marine contracting projects. IMCA expects a high level of compliance with this category from its Members.

  • Informative Guidance – Its application is recognised as useful for the safe and efficient conduct of marine contracting projects. IMCA expects its Members to take appropriate account when planning, managing, and conducting their marine contracting projects.

Our Information Notes covering safety, technical, regulatory, commercial and various other issues relevant to its Members. Non-members can explore a small number of individual articles deemed of broader industry interest.

Anyone working for a Member company has unlimited access to our entire library of documents. This degree of transparency and ready-availability ensures that contractors, suppliers, and operators always have access to them and are aligned on the latest industry good practice.

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