Login or
About notices to mariners
Find out about chart corrections, Temporary Notices To Mariners (TNTMs) and navigational warnings.
Before undertaking any boating activities, mariners are advised to check temporary notices, chart corrections and current weather information for the region.
About notices to mariners (chart corrections)
Notices to mariners and chart corrections are issued to advise mariners of permanent changes to nautical charts issued by the Department of Transport.
Types of Temporary notices to mariners (TNTMs)
WA temporary notices to mariners are divided into three types:
- Advice: Notices issued to advise the mariner of temporary navigational information considered important to safe navigation.
- Warnings: Notices issued to advise the mariner of marine hazards such as reported navigational aid outages.
- Event: Notices issued to advise the mariner of approved aquatic event and fireworks displays.
For other information on environmental conditions in your region, go to Coastal data and charts.
Notices issued by other agencies
Australian Notices to Mariners are issued by the Australian Hydrographic Office. See below for other agencies that issue notices to mariners and navigational warnings.
