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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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Diving Gas Supply Incident Reporting

1 Background The diving industry is in a highly vulnerable position should mix-ups or other errors in the provision of diving gases occur. Divers breathe life-supporting gases at high pressures. […]

| Information Note number 1559

IMCA Security Committee Bulletin 01/21

For this briefing we have provided a short update on developments in Mozambique, as well in as the Gulf of Guinea. Mozambique Members will be aware of the deteriorating security […]

| Information Note number 1558


2021 Membership Survey Results

IMCA would like to thank those members who took the time to complete the 2021 Membership Survey the results of which are attached.

| Information Note number 1556




Confined Space Entry Resource Pack – Step Change / MSF

Dear Colleagues, The Marine Safety Forum (https://www.marinesafetyforum.org/) in collaboration with Step Change in Safety (https://www.stepchangeinsafety.net/) has published a Confined Space Entry Resource Pack, including a short video with speaker notes, […]

| Information Note number 1552



IMCA Security Committee Bulletin 04/20

The IMCA Security Committee continues to work to raise awareness of security issues that can potentially harm member companies. Information provided in this regular Security Bulletin is intended to be […]

| Information Note number 1546

Changes to the French Diver Certification Requirements – Rev. 1

Your attention is brought to the following changes to the French diver qualification, recognition and renewal requirements issued by the French Ministry of Labour with effect from the 1st of […]

| Information Note number 1544

The IOGP Life-Saving Rules – the IMCA position

IMCA supports and promotes the standardisation of safety tools and initiatives across the industry. IOGP’s Life-Saving Rules specifically address nine critical areas where repeated fatalities have occurred. The Rules will […]

| Information Note number 1543

JFD COBRA Safety Notice

Your attention is brought to the following safety notice issued by JFD.  JFD is instructing all users to cease COBRA diving operations immediately until such time as replacement parts can […]

| Information Note number 1537




IMCA Membership Assessment Procedure – Diving Contractor Saturation Upgrade

This document describes the membership application and audit assessment procedure for all companies upgrading from surface supplied diving contractor membership to saturation diving contractor membership of the IMCA Diving Division.

| Information Note number 1528 | Original reference(s) IMCA D 27/20

IMCA Membership Assessment Procedure – Temporary to Full Diving Contractor

This document describes the application and audit assessment procedure for all applicants upgrading from temporary to full contractor membership of the IMCA Diving Division, encompassing both contractors undertaking surface supplied diving operations only and those utilising both surface supplied and saturation diving techniques.

| Information Note number 1527 | Original reference(s) IMCA D 26/20

GPS systems – Warning of interference

The United States Department of Transportation Maritime Administration (MARAD) has issued revised advisory notice 2020-016-Various-GPS Interference on multiple instances of significant GPS interference that have been reported worldwide. This interference is resulting […]

| Information Note number 1525 | Original reference(s) IMCA M 15/20, IMCA S 01/20

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