National Standard for Commercial Vessels 

Part C - Design and construction 

Section 5 - Engineering 

Sub-section 5D - LPG systems for engines

Edition 1.1

Commenced 10 June 2016

NSCV C5D provides requirements for liquid withdrawal systems for internal combustion engines using liquefied petroleum gas (LPG) as fuel. 

This includes but is not limited to: 

• system design and installation 
• testing, commissioning, and inspection 
• methods of leak detection 

This subsection applies to: 

• all domestic commercial vessels with engines using liquefied petroleum gas (LPG) as fuel 

Please note that your state or territory marine and energy supply authorities may have additional requirements for LPG systems. 

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

Uniform Shipping Laws code

Policy and Regulation Division

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