National Standard for Commercial Vessels 

Part C - Design and construction 

Section 5 - Engineering 

Sub-section 5A - Machinery

Edition 1.5

Commenced 1 October 2024

NSCV C5A specifies requirements for the design, construction and installation of machinery in vessels. 

This includes, but is not limited to: 

• internal combustion engines 
• propulsion systems 
• fuel systems 
• fluid systems 
• steering systems 
• ancillary systems 

This subsection applies to all domestic commercial vessels. It applies differently to vessels less than 35 m in measured length to those of at least 35 m. See Clause 1.2 for details. 

NSCV C5A updated 1 October 2024 (Edition 1.5)

What has been updated

[1] Clause 6.9.1.3

Replace:

With:

Minor amendments to 8 NSCVs

We’ve made minor amendments to 8 NSCVs, including this one, to address editorial issues. See the full list of changes: NSCV Omnibus amendments instrument No 1, 2024 PDF1.11 MB

Marine order 12—Construction—subdivision and stability, machinery and electrical installations

Guidance notices and fact sheets for domestic commercial vessel owners and operators

Uniform Shipping Laws code

Policy and Regulation Division

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