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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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IOGP Report 373-23, Geomatics Guidance Note 23 – Web Mercator

The International Oil & Gas Producers Association (IOGP) has published Report 373-23, Geomatics Guidance  Note 23 – Web Mercator. This guidance note aims to clarify the main issues associated with the usage of the Web Mercator Coordinate Reference System (CRS), clear up misunderstandings about what it is, and warn against

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| Information Note number 1335

Recommended service life for Kirby Morgan helmet fiberglass shells, frames and yokes

Members should note that on 19 September 2016 Kirby Morgan Dive Systems Inc (KMDSI) released Maintenance & Repair Bulletin #9 of 2016. In this bulletin Kirby Morgan recommends replacement of diving helmet fiberglass shells, frames and yokes that have been in service for 25 years or more (sometimes fewer than 25

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| Information Note number 1334

Cyber security risk management: US Coast Guard (USCG) guidance

Members operating in US waters will wish to be aware of the guidance published by the USCG, on measures that it  is proposing are applied to the marine sector for cyber security risk management. The information contained in  this information note is sourced from the USCG’s Blog for Maritime Professionals

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| Information Note number 1332


DP station keeping reporting

DP station keeping reporting has further evolved during 2016. The experience and knowledge of the IMCA DP Focused Workgroup has enabled the production of a new electronic DP station keeping event form, introduction of a periodic DP event bulletin and the inclusion of a gap analysis tool to complement the

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| Information Note number 1328

US National Maritime Security Advisory Committee vacancies

This information note is for the benefit of IMCA’s US members and concerns a message from the US Coast Guard which seeks applications from candidates to become members of the National Maritime Security Advisory Committee. A notification has been placed on the ‘Coast Guard Maritime Commons’ web page and has

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| Information Note number 1327


Revalidating STCW certificates: New requirements for seafarers

The International Convention on Standards of Training, Certification and Watchkeeping for Seafarers 1978 (STCW Convention) and Code, as amended by the 2010 Manila Amendments, provide new requirements for all seafarers. The transitional period for these amendments comes to an end on 1 January 2017. Seafarers revalidating their STCW certificates will

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| Information Note number 1325

Application to designate the North Sea and English Channel and the Baltic Sea ECAs as ECA NOₓ

Applications have been submitted to the next meeting of the International Maritime Organization (IMO) Marine Environmental Protection Committee (MEPC) to extend the scope of the North Sea & English Channel and the Baltic Sea Emissions Control Areas (ECAs) to ECA NOₓ. If approved, any new ships constructed on or after

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| Information Note number 1324

IOGP Technical Notes on Guidelines for the conduct of offshore drilling hazard site surveys

In 2013, the International Association of Oil & Gas Producers (IOGP) published Guidelines for the conduct of offshore  drilling hazard site surveys (IOGP No. 373-18-1). This describes oilfield good practice for conducting geophysical and hydrographic site surveys of proposed offshore drilling locations. IOGP’s new Technical Notes publication (IOGP No. 373-18-2)

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| Information Note number 1322



Ballast Water Management Convention

1 What is the Ballast Water Management Convention? The International Convention for the Control and Management of Ships Ballast Water & Sediments was adopted by the International Maritime Organization (IMO) in 2004, it is intended to prevent the spread of invasive species and to protect biodiversity.  The Convention will prohibit

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| Information Note number 1318

NDC-CI reappointed as the issuing authority for diver and supervisor certification for those working in Dutch waters

In 2012 legislation in the Netherlands changed, requiring that all divers working in Dutch waters be in possession of an appropriate Dutch diving qualification for the type of diving activity they were undertaking. This system is based on MEN ISO/IEC 17024 Personnel which encompasses all high risk work activities in

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| Information Note number 1317

Feedback on IMCA publications

IMCA welcomes feedback on its guidance and technical publications. Read on to find out how to make a submission.

| Information Note number 1339



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