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Sizewell C
Notices to Mariners

Here you will find all active and inactive ‘Notices to Mariners’ with information relevant to port marine operations within the Sizewell C harbour area. Would you like to be notified by email when new notices and policies are added?

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If you have any questions relating to our Notices or Marine Policies, email the harbour master: harbour.master@sizewellc.com

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Harbour Authority Alerts

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Policies & Procedures

The Sizewell C Harbour Authority has established 14 Marine Policies which have been signed by the Duty Harbour.

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Marine Works

Between 2025 and 2035, the construction of the Sizewell C Nuclear Power Station will comprise various marine elements.

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Harbour Applications & Permissions

In order to ensure that safety of navigation and protection of the marine environment is maintained, SZCHA has implemented a Harbour Works Procedure.

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Sign up to receive new ‘Notices to Mariners’ and Policy & Procedure updates via email. Note – you can unsubscribe at any time using the unsubscribe link in any emails we send.

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