UR Z - Survey and Certification

Voyage Repairs and Maintenance - Rev.3 Jan 2011 Clean.

UR Z15 Hull, structure, equipment and machinery surveys of mobile offshore drilling units - Rev.3 May 2019 Clean

UR Z16 Periodical surveys of cargo installations on ships carrying liquefied gases in bulk Rev.4 Corr.1 May 2022 Clean

UR Z17 Procedural requirements for service suppliers - Rev.16 Aug 2021 Clean

UR Z18 Survey of machinery - Rev.9 April 2020 Clean

UR Z19 Calibration of measuring equipment - April 1999

UR Z20 Planned maintenance scheme (PMS) for machinery - Rev.2 May 2019 Clean

UR Z21 Surveys of propeller shafts and tube shafts - Rev.4 Oct 2015

Survey requirements for automatic air pipe heads - Deleted July 2014

UR Z23 Hull survey for new construction - Rev.7 Oct 2020 Clean

UR Z24 Survey requirements for shell and inner doors of ro-ro ships - Corr.1 July 2011

UR Z25 Periodic Survey of Fuel Installations on Ships other than Liquefied Gas Carriers utilizing gas or other low flash point fuels - Rev.1 Sep 2017 Clean.

UR Z26 Alternative Certification Scheme (ACS) - Feb 2015

UR Z27 Condition Monitoring and Condition Based Maintenance - New July 2018.

UR Z28 Surveys of Watertight Cable Transits - Corr.1 June 2021 Clean

UR Z29 Remote Classification Surveys - New Mar 2022

Note: UR Z29 New will come into force on 1 January 2023