# The Portland Harbour Revision Order 1997, Paragraph 40


No person shall navigate any vessel in the harbour whilst under the influence of drink or drugs to such an extent as to be incapable of taking proper control of the vessel.

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Source: https://www.legislation.gov.uk/uksi/1997/2949/schedule/1/paragraph/40 (the official version)
Page: https://openlegislation.uk/portland-harbour-revision-order-1997/schedule-1/paragraph-40
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.