# The Dockyard Port of Plymouth Order 1999, Paragraph 6: Low visibility


When visibility is less than 500 metres the Queen’s Harbour Master may suspend all traffic and control individual movements.

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Source: https://www.legislation.gov.uk/uksi/1999/2029/schedule/2/paragraph/6 (the official version)
Page: https://openlegislation.uk/dockyard-port-of-plymouth-order-1999/schedule-2/paragraph-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.