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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 Number

Title

Applicable Standard

GES 2017/19 Use of flush desk hatches in lieu of raised coamings (PDF 179.51 KB)

USL Section 5C and USL Section 5D

GES 2017/09

Use of buoyant storage devices on domestic commercial vessels (PDF 155.53 KB)

NSCV C7A

GES 2016/16

Construction of vessels from polyethylene (PDF 345.78 KB)

NSCV C3

GES 2015/12

Operational wave height for high speed craft (PDF 142.82 KB)

NSCV B, F1A, F1B & F1C

GES 2015/03

Alternative criteria for towing stability assessment (PDF 215.49 KB)

NSCV C6A

GES 2015/01

Carriage of first aid supplies on domestic commercial vessels (PDF 219.57 KB)

NSCV C7A

GES 2014/04

Regulatory requirements for inflatable and rigid inflatable boats (PDF 204.39 KB)

MO503

GES 2014/03

Application 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’ (PDF 228.25 KB)

NSCV C6A, C6B and C6C

GES 2014/02

Use of simplified stability criteria decked and open vessels less than 7.5 metres length carrying passengers to sea (PDF 172.72 KB)

NSCV C6A

GES 2014/01

Window design and installation for vessels up to 35 metres in length (PDF 160.38 KB)

NSCV C3

GES 2010/02

Use of AS4132 for construction of vessels using FRP or aluminium (PDF 165.88 KB)

NSCV C3

Circular 2010/02

Non-destructive testing procedure for ultrasonic propeller shaft inspection (PDF 244.01 KB)

Marine Surveyors Accreditation Guidance Manual 2014

Circular 05-01

Tinting of navigational space windows (PDF 278.6 KB)

USL Code 5C and 5D

Superseded GES are available for information.

Last updated: 

Tuesday 22 September 2020