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Start Over You searched for: Year 2012 Remove constraint Year: 2012 Subject Harbors--Traffic control Remove constraint Subject: Harbors--Traffic control Creator I.M. Systems Group Remove constraint Creator: I.M. Systems Group

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2012. I.M. Systems Group. This polygon shapefile represents the geographic location and identity of designated areas used to manage vessel traffic in the northeast United St... United States. National Oceanic and Atmospheric Administration.