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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.

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Cybersecurity Briefing

The International Association of Classification Societies (IACS) has recently published new unified requirements for cyber security: E26 and E27.  These will be mandatory for classed ships and offshore installations contracted for construction on or after 1 January 2024.  This will have implications for IMCA members.

| Information Note number 1639

Combined Heading/Motion and Gyro Sensor Concerns

The IMCA DP Committee has been made aware of potential common-mode failures regarding Combined Gyro Compass and Motion Reference Sensors (MRU). These potential failures are discussed below and must be understood and considered while using/updating/purchasing combination MRU/Gyro, or gyro sensors that may rely on a GNSS signal to remain functional.

| Information Note number 1633

Field Arrival Trials

What are Field Arrival Trials? A pre-defined programme of tests and checks to be performed prior to the entry into the area of operation that are designed to confirm the […]

| Information Note number 1628

ASOG – The Decision Support Tool You Need

Following a review of the 2021 Annual DP Station Keeping Event Report published by IMCA in March 2022, the IMCA Marine Division Management Committee & DP Committee agreed that an objective for 2022 was to create an information note explaining the subject of Activity Specific Operating Guidelines (ASOG) and its

| Information Note number 1618

FMEA – Five Yearly Review

Guidance and lessons learned may be missed if the FMEA/FMECA document is not periodically refreshed.  A neglected DP system FMEA/FMECA may lead to a reduction in robustness, resilience, and single fault tolerance if it is only updated after deficiencies have been identified by a vessel DP Assurance process or after

| Information Note number 1605

eCMID and eMISW Findings Analysis

April 2020 – April 2021 IMCA has analysed 1517 vessel inspection reports uploaded between April 2020 and April 2021 into the eCMID database at and produced the following summary […]

| Information Note number 1576

IMCA Security Bulletin 03/21

The Gulf of Guinea Declaration on the Suppression of Piracy Every person deserves to be safe while carrying out their work, and to be able to return to their homes […]

| Information Note number 1569

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

eCMID/eMISW Temporary Validity Extension Ending

Further to information note IMCA M 01/20 – Marine and DP assurance – IMCA advice during ongoing COVID-19 situation, the temporary validity extension of eCMID/eMISW inspections ends in July. IMCA […]

| Information Note number 1517 | Original reference(s) IMCA M 14/20

eCMID and eMISW findings analysis

IMCA has analysed over 2,100 vessel inspection reports uploaded into the eCMID database at and produced the following summary of key findings. The eCMID system enables vessel operators to […]

| Information Note number 1512 | Original reference(s) IMCA M 13/20

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