Lloyd's Register's Naval Ship Rules

What are Lloyd’s Register’s Naval Ship Rules?

The Naval Ship Rules set standards for the design, construction and operation of naval ships. Developed from Lloyd’s Register’s Rules and Regulations for the Classification of Ships, the Naval Ship Rules have specific requirements to cover the unique aspects of naval ships and their systems, such as loading (e.g. flight decks), systems (e.g. RAS) and the procedural aspects (e.g. the need to defer to the naval administration (IPT) for a requirement rather than be guided by an IMO international civil regulation such as SOLAS).

The Naval Ship Rules cover:

• hull construction
• machinery systems for propulsion and other essential services
• piping systems for ship and machinery
• steam raising plant and pressure vessels
• electrical power generation and distribution systems
• control, automation, alarm and safety systems

What is the NSASS role?

The Naval Ship Rules are regularly updated to reflect changes in technology or following feedback from in service ships.

NSASS is the point of contact for you to provide feedback on the rules and contribute towards developing proposals for rule updates.

NSASS is the point of contact for queries on the application of the Naval Ship Rules and how they fit into the Naval Ship Assurance Framework.

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