Generic equivalent solutions for national standards

Generic equivalent solutions (GES) support national standards by allowing the use of new technology and other solutions.

GES provide alternative ways to meet the national standard for commercial vessels. GES are made to facilitate innovation, modernisation and emerging technologies. You can apply a GES to your vessel during design or construction or once the vessel is operating. 

GES NumberTitleApplicable Standard
GES 2022/01Compliance with NSCV Section C2 – watertight and weathertight integrity PDF210.13 KB NSCV C2
GES 2017/19Use of flush desk hatches in lieu of raised coamings PDF179.51 KBUSL Section 5C and USL Section 5D
GES 2017/09Use of buoyant storage devices on domestic commercial vessels PDF155.53 KBNSCV C7A
GES 2016/16Construction of vessels from polyethylene PDF345.78 KBNSCV C3
GES 2015/12Operational wave height for high speed craft PDF142.82 KBNSCV B, F1A, F1B & F1C
GES 2015/03Alternative criteria for towing stability assessment PDF215.49 KBNSCV C6A
GES 2015/01Carriage of first aid supplies on domestic commercial vessels PDF219.57 KBNSCV C7A
GES 2014/04Regulatory requirements for inflatable and rigid inflatable boats PDF204.39 KBMO503
GES 2014/03Application of ISO 12217 Part 2 ‘small craft – stability and buoyancy assessment and categorisation – sailing boats of hull length greater than or equal to 6 metres’ PDF228.25 KBNSCV C6A, C6B and C6C
GES 2014/02Use of simplified stability criteria decked and open vessels less than 7.5 metres length carrying passengers to sea PDF172.72 KBNSCV C6A
GES 2014/01Window design and installation for vessels up to 35 metres in length PDF160.38 KBNSCV C3
GES 2010/02Use of AS4132 for construction of vessels using FRP or aluminium PDF165.88 KBNSCV C3
Circular 2010/02Non-destructive testing procedure for ultrasonic propeller shaft inspection PDF244.01 KBMarine Surveyors Accreditation Guidance Manual 2014
Circular 05-01Tinting of navigational space windowsUSL Code 5C and 5D

Superseded GES are available for information.

Last updated: 14 January 2025

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