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Guidance: Marine Order 504 changes

Update your SMS

Update your SMS so it complies with the revised MO504 when it comes into effect on 1 June 2025.

The requirements you need to meet depend on the class of vessel you operate.

To do list
Class 1, 2 and 3 vessels
To do list
Class 4 vessels

Note: Some requirements may not apply to vessels eligible for a simplified SMS. See details in the guidance.