Discontinuation

From International Dictionary of Marine Aids to Navigation
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1-1-055

Official removal or switching-off of an aid to navigation and its deletion from the authorized list (e.g. list of lights).




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

acceleration due to gravity (m/s2)

International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM