Notice to Mariners

Annual Standing Notice No.20 - Controlled and Exclusion Zones



1. MARINERS ARE HEREBY ADVISED that, for enhancement of safety, certain specified vessels whilst navigating within the jurisdiction of the port may be allocated zones as follows:

Controlled Zones
Extending 1 mile ahead and astern of the specified vessel and within the main channel. No commercial vessel of 20 metres or more may navigate within the controlled zone except astern of the specified vessel where such navigation is away from it and provided that prior permission has been sought from and granted by Port Control.

Exclusion Zones
Extending ahead to the limit of the line of sight from the bridge of the specified vessel within the confines of the channel, no vessel is permitted to navigate within this zone at any time. Such limit will be determined by a patrol vessel stationed ahead. The zone astern will extend to the stern of an escort tug, where provided, or 100 metres where it is not.

2. Please click here for a not to scale diagram of the zones.



Port of Milford Haven
Gorsewood Drive
Milford Haven
SA73 3EP

Tel: 01646 696100

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