UR M - Machinery installations

UR M61 Starting arrangements of internal combustion engines - Dec 2003

Note: UR M61 Rev.1 will come into force on 1 January 2023 and can be found in "Revision History"

UR M62 Deleted

Rooms for emergency fire pumps in cargo ships - Deleted June 2014

UR M63 New

UR M63 Alarms and safeguards for emergency diesel engines - Jan 2005

UR M64 Rev1 CLN

UR M64 Design of integrated cargo and ballast systems on tankers - Rev.1 July 2004

UR M65 Rev1 CLN

UR M65 Draining and pumping forward spaces in bulk carriers - Rev.1 July 2004

UR M66 Rev4 Corr1 CLN

UR M66 Type testing procedure for crankcase explosion relief valves - Rev.4 Corr.1 Oct 2021 Clean

UR M67 Type testing procedure for crankcase oil mist detection and alarm equipment - Rev.2 Feb 2015

UR M68 Dimensions of propulsion shafts and their permissible torsional vibration stresses - Rev.3 Feb 2021 Clean

UR M69 Qualitative failure analysis for propulsion and steering on passenger ships - Deleted Mar 2022

UR M71 Type Testing of I.C. Engines - Corr.1 June 2016

UR M72 Certification of Engine Components - Rev.2 Jan 2019 Clean

UR M73 Turbochargers - Corr.1 June 2016 Clean

Note: UR M73 Rev.1 will come into force on 1 January 2023 and can be found in "Revision History"

UR M74 Installation of Ballast Water Management Systems - Rev.1 May 2016 Clean

Note: UR M74 Rev.2 will come into force on 1 July 2022 and can be found in "Revision History" 

UR M75 Ventilation of emergency generator rooms - Rev.1 Jan 2021 Clean

UR M76 Location of fuel tanks in cargo area on oil and chemical tankers - Rev.1 June 2018 Clean

UR M77 Storage and use of SCR reductants - Rev.3 Sep 2021 Clean

UR M78 Safety of Internal Combustion Engines Supplied with Low Pressure Gas - Rev.1 Feb 2021 Clean

UR M79 Towing winch emergency release systems - Rev.1 Feb 2020 Clean

UR M80 New

UR M80 Requirements for AC Generating sets - New May 2019

UR M81 New

UR M81 Safety measures against chemical treatment fluids used for exhaust gas cleaning systems and the residues which have hazardous properties - New Jan 2021

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