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 distributed to inform seafarers about changes in Department of Transport produced nautical charts.

They are a means of keeping charts up-to-date with information of a safety or navigational nature.

  About 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

The Australian Hydrographic Office is the Commonwealth authority responsible for producing the AUS series of charts and circulating Australian Notices to Mariners which often reproduce information contained in WA Department of Transport Notices to Mariners.

See below for other agencies that issue notices to mariners and navigational warnings.

Opens in a new window Australian Maritime Safety Authority (AMSA)
Opens in a new window Department of Defence: Australian Hydrographic Office
Opens in a new window Fremantle Port Authority
Opens in a new window Kimberley Ports Authority
Opens in a new window Pilbara Ports Authority
Opens in a new window Southern Ports Authority (Esperance): Marine notices


Page last updated: Fri Feb 21 2020 1:50:21 PM