• Maritime Limits and Boundaries of United States of America

    Updated: Dec 09, 2014

    NOAA is responsible for depicting on its nautical charts the limits of the 12 nautical mile Territorial Sea, 24 nautical mile Contiguous Zone, and 200 nautical mile Exclusive Economic Zone (EEZ). The outer limit of each of these zones is measured from the U.S. normal baseline, which coincides with the low water line depicted on NOAA charts and includes closing lines across the entrances of legal bays and rivers, consistent with international law. The U.S. baseline and associated maritime limits are reviewed and approved through the interagency U.S. Baseline Committee, which is chaired by the U.S. Department of State. The Committee serves the function of gaining interagency consensus on the proper location of the baseline using the provisions of the 1958 Convention on the Territorial Sea and the Contiguous Zone, to ensure that the seaward extent of U.S. maritime zones do not exceed the breadth that is permitted by international law. In 2002 and in response to mounting requests for digital maritime zones, NOAA launched a project to re-evaluate the U.S. baseline in partnership with other federal agencies via the U.S. Baseline Committee. The focus of the baseline evaluation was NOAA's largest scale, most recent edition nautical charts as well as supplemental source materials for verification of certain charted features. This dataset is a result of the 2002-present initiative and reflects a multi-year iterative project whereby the baseline and associated maritime limits were re-evaluated on a state or regional basis. In addition to the U.S. maritime limits, the U.S. maritime boundaries with opposite or adjacent countries as well as the US/Canada International Boundary (on land and through the Great Lakes) are also included in this dataset.

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    Metadata Date Dec 04, 2014
    Metadata Created Date Mar 15, 2013
    Metadata Updated Date Dec 09, 2014
    Reference Date(s) Sep 13, 2013 (publication)
    Frequency Of Update continual

    Metadata Source

    Harvested from NCDDC-NOS-OCS

    About this Dataset

    Resource Type Dataset
    Metadata Date Dec 04, 2014
    Metadata Created Date Mar 15, 2013
    Metadata Updated Date Dec 09, 2014
    Reference Date(s) Sep 13, 2013 (publication)
    Responsible Party National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS) (Point of Contact)
    Contact Email
    Access Constraints Use Constraints: NOT FOR LEGAL USE. These limits and boundaries were created for internal purposes only to update the charted maritime limits and maritime boundaries on NOAA charts. These limits and boundaries do not represent the official depiction. For official depiction, please see NOAA's paper or raster nautical charts., Access Constraints: None
    Bbox East Long -60.0
    Bbox North Lat 74.708840
    Bbox South Lat -17.555000
    Bbox West Long 140.0
    Coupled Resource
    Frequency Of Update continual
    Harvest Object Id 019d7894-ecc1-4e93-8666-d9ea3221034e
    Harvest Source Id 98440999-81c2-456c-901f-4570203cb521
    Harvest Source Title NCDDC-NOS-OCS
    Licence Users must assume responsibility to determine the appropriate use of this data set. The digital maritime limits are not to be used for a legal definition. The legal definition still remains the depiction on NOAA's nautical charts.
    Metadata Language
    Metadata Type geospatial
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True

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