Notices to mariners and chart corrections are issued to advise mariners of permanent changes to nautical charts issued by the Department of Transport. 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.
Before undertaking any boating activities, mariners are advised to check temporary notices, chart corrections and current weather information for the region.