Notice to mariners

A Notice to Mariners (NtM) reports maritime safety information on Northern Territory (NT) waters.

This includes:

  • closed waters (exclusion zones)
  • new hydrographic information
  • changes in channel depths
  • aids to navigation.

They're shared to mariners (recreational and commercial) and maritime-related organisations.

Marine operators are also required by law to report navigational hazards or dangers.

Types of notices

A notice can appear as a:

  • permanent notice - changes to information which result in a chart correction released by the Australian Hydrographic Service
  • preliminary notice (P) - a pre-emptive notification of a permanent change
  • temporary notice (T) - information valid only for a limited time.

Find notices below. They may also be published in local and state-wide print media and reproduced in the Australian Notices.

Port of Darwin local notices

NtM number and name Date published Notice type
Local-NtM-2024-017-Baseline-Marine-Survey.pdf PDF (405.0 KB) 03 May 2024 Temporary
Local-NtM-2024-018-Barossa-Gas-Export-Pipeline-Dredge-Area-Survey.pdf PDF (863.4 KB) 03 May 2024 Temporary
Local NtM 2024-016-Temporary storage of CSD Arnhem PDF (553.9 KB) 02 May 2024 Temporary
Local NtM 2024-015-Navigation Hazard New Tidal Gauge at Cullen Bay Lock updated PDF (498.2 KB) 01 May 2024 Temporary
Local-NtM-2024-014-Navigation-Hazard-Sadgroves-Creek.pdf PDF (440.3 KB) 26 Apr 2024 Temporary
Local NtM 2024-013-De ammunition at Talc Head PDF (532.4 KB) 24 Apr 2024 Temporary
Local-NtM-2024-010-Military-watercraft-training.pdf PDF (108.0 KB) 16 Apr 2024 Temporary
Local-NtM-2024-012-Flare-Demonstration-East-Arm-Boat-Ramp.pdf PDF (106.3 KB) 16 Apr 2024 Temporary
Local NtM 2024-009 Wet Storage of Discharge Pipe PDF (603.7 KB) 20 Mar 2024 Temporary
Local NtM 2024 - 004 Update: Wickham, Shoal Nth Cardinal Buoy PDF (571.4 KB) 15 Feb 2024 Temporary
Local NtM 2024 - 003 Declared Port Depths PDF (598.9 KB) 16 Jan 2024 Permanent
NtM 2022-058 - Special purpose general beacon LOA2A not working PDF (81.4 KB) 09 Dec 2022 Temporary
Local NtM 2022-016 B03 beacon temporary light fitted PDF (647.7 KB) 29 Mar 2022 Temporary
NtM 2022-0002-BO7 Beacon light reinstated PDF (443.3 KB) 15 Jan 2022 Temporary
2019-021 Scientific instrument buoys PDF (632.0 KB) 27 Mar 2019 Temporary

NT coastal notices - whole of NT waters

NtM number and name Date published Notice type
Coastal-NtM-2024-007-Wharf-Closure-and-Exclusion-Zone-Milner-Bay.pdf PDF (262.1 KB) 16 Apr 2024 Temporary
Coastal-NtM-2024-005-Medina-Inlet-STB-Marker-Missing.pdf PDF (416.9 KB) 27 Mar 2024 Temporary
Coastal NtM 2023 - 040 Wave Rider Buoy placed off the Goodrich Bank PDF (532.0 KB) 13 Dec 2023 Temporary
Coastal NtM 2023 - 038 Santos Barossa Gas Export Pipeline Installation PDF (1.2 MB) 26 Oct 2023 Temporary
Coastal NtM 2023 - 007 Water Quality Monitoring Buoys Gove Harbour PDF (595.0 KB) 02 Feb 2023 Permanent
Coastal NtM 2022 - 033 Medina Inlet light off Station PDF (417.1 KB) 07 Oct 2022 Temporary
Coasat NtM 2022 - 024 Medina Inlet Light Extinguished PDF (664.5 KB) 22 Aug 2022 Temporary
NtM 2021-009 Wave and temperature buoy PDF (666.0 KB) 14 Sep 2021 Temporary
NtM 2019-006 Buffalo Creek beacons PDF (554.7 KB) 20 Jun 2019 Permanent
NtM 2018-003 Dundee FAD deployment PDF (506.6 KB) 07 Sep 2018 Temporary

Contact

If you would like to be added to the email distribution list, email ntm@nt.gov.au.

For more information, contact the regional harbourmaster.

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