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Standards for Signalling

Last updated: 08-06-2022 @ 03:56

You must at all times abide by the rules of the International Regulations for Preventing Collisions at Sea 1972 also known as the COLREGS.

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Richmond Half Tide barrier displaying 3 red discs in an inverted tiangle

In addition, the PLA are starting to used remotely operated “smart signals” to indicate if a particular arch is in use. Current examples – near to Thames tideway construction sites, are:

Sound Signals

It’s worth look at the signalling sounds in the CEVNI rules below (pages 135 to 140) which are seemingly at odds with the PLA requirements. ┬áThe view we take is when in Rome do as the Romans do !

The CEVNI rules and regulations are available here. The RYA do an online training course and test.

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