Modernised Australian Ship Tracking and Reporting System (MASTREP) is operated by AMSA as part of the services offered by the Joint Rescue Coordination Centre (JRCC Australia). 

Under this system:

• Positional reporting for vessels is sourced from the vessel’s Automatic Identification System (AIS).
• Sailing plans, deviation reports and final reports are not required.
• Communications with vessels continue to be available through Inmarsat, HF, satellite telephony and other means.
• Special reports are required to support AMSA’s role in shipping oversight and incident reporting management.

This system became effective 1 January 2016. Read the full detail in the attached document.