United Kingdom – Operating Limits

Speed restrictions as well as any local applicable area restrictions (including restrictions on waste water discharge  and fuel supply in environmentally sensitive areas)INLAND – Different inland navigation authorities will set different speed restrictions on their waterways.  Here is an example for the non tidal Thames, managed by the Environment Agency https://www.gov.uk/guidance/river-thames-distances-and-measurements-for-…COASTAL – Each Harbour authority will set speed restrictions.  Once you are out of the Harbour Authorities jurisdiction there are no speed limits.  For example, Poole Harbour Commissioners set the following speed limits – https://www.phc.co.uk/wp-content/uploads/2021/03/2021-12-Poole-Harbour-S…. In some Marine Conservation Zones or Marine Protected areas, there may be byelaws on speed restrictions – See example for Skomer MCZ https://naturalresources.wales/guidance-and-advice/environmental-topics/…