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IMCA produces a range of materials for its members as information notes, covering safety, technical, regulatory, commercial and various other issues relevant to its members.

Members can access all of these materials by logging in to this site. Non-members can view titles, for information, and a small number of individual articles deemed of wider public interest.

Browse our most recent information notes below, or use the filters to view our archives by subject and/or year.

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Withdrawal of UK Legislation Module Examination

With effect from the date of publication of this Information Note IMCA will no longer be offering the UK Legislation module examination as part of the IMCA diving supervisor and LST certification schemes. As of 27 February 2023, IMCA will cease to take all new bookings for the UK legislation

| Information Note number 1632

COBRA Bailout System: Top Handle Failure

Members’ attention is brought to the recent Guidance Note issued by JFD relating to the failure of the top handle on a COBRA set while the set was being hoisted.

| Information Note number 1630



Registration and Revalidation of South African Diving Qualifications

The South African commercial diving regulator, the Department of Employment and Labour, has announced details of the registration and revalidation process that all commercial divers, diving supervisors, chamber operators and diving instructors holding training certificates issued by the department are required to complete in order to ensure continuing validation of

| Information Note number 1623

COBRA Bailout System: Bailout Duration Times

Members’ attention is brought to the recent Guidance Note issued by JFD relating to bailout duration times with partially depleted cylinder pressures.

| Information Note number 1622

Summary of IMCA D 023 Document Changes 2022

IMCA D 023 Rev. 1 DESIGN for surface orientated (air) diving systems was published in January 2014. The latest revision of IMCA D 023 has now been published (Rev. 2). This Information Note summarises the changes that were made during the Rev. 1 to Rev. 2 update process.

| Information Note number 1619

Dutch Regulator Announces Recognition Scheme for Non-EU Diving Medical Certificates

The Dutch regulator for diving, SWOD, has announced it will recognise valid certificates of medical fitness to dive issued by a Health and Safety Executive (HSE) Approved Medical Examiner of Divers (AMED) for divers wishing to work in Dutch waters. Dutch medicals are currently recognised by the HSE.

| Information Note number 1617


COBRA Advisory Notice: Setting Positive Pressure

Your attention is brought to the following guidance note from JFD pertaining to reported various issues around setting the positive pressure on the COBRA backpack. The guidance note can be […]

| Information Note number 1613



Verification of Diver Qualifications

This information note supersedes IMCA D 02/18 which is now withdrawn. This information note has been produced to help IMCA Members and others verify the validity of diving certificates recognised […]

| Information Note number 1609



Loosening of COBRA Handle Manifold – JFD Guidance Note

Members’ attention is brought to the recent Guidance Note issued by JFD relating to the Compact Bailout Rebreathing Apparatus (COBRA) handle manifold becoming loose within the activation assembly on the […]

| Information Note number 1599

COBRA Pre-use Procedures – JFD Guidance Note

Members’ attention is brought to the recent Guidance Note issued by JFD concerning changes to the pre-use procedures for the Compact Bailout Rebreathing Apparatus (COBRA).  The COBRA manual will be […]

| Information Note number 1598


Summary of IMCA D 024 Document Changes 2021

IMCA D 024 Rev. 2 DESIGN for saturation (bell) diving systems was published in July 2014.  The latest revision of IMCA D 024 has now been published (Rev. 3).  This […]

| Information Note number 1595

Summary of IMCA D 018 Document Changes 2021

IMCA D 018 Rev. 1 Code of practice for the initial and periodic examination, testing and certification of diving plant and equipment was published in June 2014.  The latest revision […]

| Information Note number 1594

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