We have read and answered your questions about the new requirements for domestic commercial vessels that carry passengers.

You must revalidate your CoST every 5 years to keep it current. Find out when to apply, what you need and how to revalidate your CoST.

Guidance on crewing of domestic commercial vessels as per Schedule 1 Clause 6 - Appropriate crewing and Clause 8 - Minimum crewing of Marine Order 504 (Certificates of operation - national law) 2024. Schedule 1 applies to all vessels other than class 4 vessels.

Our regulatory program is prepared annually and contains details of planned and completed changes to our regulatory instruments.

How to calculate your sea service before you apply for a sea service assessment.

These general exemptions are now superseded or repealed. Superseded and repealed exemptions may affect how the national system works for you.

In this edition we talk about audits and application assessments, compass adjustment requirements, uncrewed barges and more.

In this edition, we seek your feedback on national standards for fire safety on commercial vessels, talk about securing liferafts, share a case study about accreditation, an electrical fire incident caused by a portable electrical tool battery, and our new updated forms for surveyors.

A deficiency notice uses codes to show non-compliance found during a Port State control (PSC) inspection.

If you are a Traditional Inhabitant of the Torres Strait and use your TIB to catch seafood and sell it, your boat is being used as a domestic commercial vessel. This page explains what that means, when you can use the TIB-specific exemption, and the steps you must follow to operate safely and legally.

Getting hooked-up is one of the most dangerous situations you can experience on a trawler. Be prepared. Knowing what you and your crew need to do can save lives.

Feedback from stakeholders about proposed changes to Marine Order 504 (Certificates of operation and operation requirements) 2018 (MO504) relating to safety management systems (SMS).

The following statistics relate to the complaints received by AMSA since we issued Marine notice 04/2020 (expired 30 September 2020) and Marine notice 10/2020 (expired 28 February 2021).

Read a transcript of the webinar 'Fatigue management on domestic commercial vessels' held on 8 May 2026.

This page contains a list of past changes to Marine Orders and International Maritime Organization (IMO) resolutions.