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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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Rope signals

IMCA is concerned about the issue of skill fade in offshore divers who may need to rely on rope signals for communication should direct voice contact with the surface be lost. All offshore divers need to be fully competent in the use of rope signals.  This is so that divers

This content is only available to members.

| Information Note number 1212 | Original reference(s) IMCA D 03/14


Latex neck seals

Your attention is brought to UK Health & Safety Executive’s (HSE) Diving Inspectorate recently issued Safety Flash on the importance of sizing of latex neck seals used with diving equipment. http://www.hse.gov.uk/safetybulletins/latex-neck-seals.htm?eban=govdel-diving&cr=27-Nov-2013 Latex neck seals used in the diving industry need to be correctly fitted to the diver. The seals are

This content is only available to members.

| Information Note number 1196 | Original reference(s) IMCA D 14/13

Renewal of diver medic certification

This information note updates IMCA D 08/07, IMCA recognises diver medic training provided by a number of establishments (listed on this site) which have been audited in accordance with guidance […]

| Information Note number 1181


Competence of auditors

Originally issued as IMCA D 07/13

| Information Note number 1170 | Original reference(s) IMCA D 07/13

Changes to diver medic training validity period

There is an IMCA requirement for at least one member of the dive team, who is not diving (other than the supervisor), to be trained in advanced first aid – generally referred to as a ‘diver medic’.  Diver medics usually attend an initial full diver medic training course and then

This content is only available to members.

| Information Note number 1167 | Original reference(s) IMCA D 05/13




Divers’ gas supply

Originally issued with the following reference(s): IMCA D 04/11

This content is only available to members.

| Information Note number 1057 | Original reference(s) IMCA D 04/11




The evaluation and testing of the environmental control of hyperbaric evacuation systems

Background In 1999, IMCA produced a protocol to provide information for its members on the thermal testing of hyperbaric evacuation systems (HESs). This was issued as information note IMCA D 24/99, with an extensive technical note (see right-hand panel) which provided the technical details for those responsible for testing and assessing

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| Information Note number 780 | Original reference(s) IMCA D 02/06


Competence assessment of experienced surface supplied divers

As outlined in Diving Division Information Note D 20/99, IMCA has been involved in developing arrangements for the assessment of certain divers with broad diving experience but who lack written qualifications.  […]

| Information Note number 799

Medical Examination of Divers

Background As you may be aware the UK Health & Safety Executive (HSE) is withdrawing from its internationally recognised scheme for the approval of non-UK based doctors to carry out […]

| Information Note number 428 | Original reference(s) IMCA D 20/01

Guidance on the recovery of bodies

Diving contractors have been involved in the recovery of bodies from wrecks at sea as long as there has been a diving industry. It goes without saying that the experience can be traumatic for those involved. An IMCA contractor has kindly made available a copy of its plan covering the

This content is only available to members.

| Information Note number 425 | Original reference(s) IMCA D 19/01

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