Layer: Magnuson Stevens Act Waters (ID:15)

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Name: Magnuson Stevens Act Waters

Display Field: Id

Type: Feature Layer

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Description: This GIS data set depicts a combination of the Outer EEZ from NOS sources, and the Inner EEZ from BOEM sources, producing the geographic regulatory boundaries in federal waters, or Magnuson Stevens Act area. Outer EEZ: NOAA's Office of Coast Survey (OCS) is responsible for generating the Three Nautical Mile Line, Territorial Sea, Contiguous Zone, and Exclusive Economic Zone (EEZ). Traditionally, these maritime limits have been generated by hand from the low water line depicted on paper, U.S. nautical charts. Upon final approval by the U.S. Baseline Committee, these legally-binding maritime limits are applied to the next edition of nautical charts produced by the Marine Chart Division of OCS. Due to new cartographic production processes and the availability of digital products such as Electronic Navigational Charts (ENCs), the Office of Coast Survey (OCS) is generating more accurate, digital maritime limits. Through the use of Geographic Information Systems (GIS) software such as CARIS' LOTS and ESRI's ArcGIS, the latest vector representations of these limits will be available to NOAA cartographers and the public. To create digital limits, the charted low water line is digitized from the largest-scale raster nautical charts and used as input to CARIS' LOTS: Limits and Boundaries software for the designation of a baseline. Other parts of the EEZ include maritime boundary agreements and/or unilateral claims as noted in Federal Register Notice, Volume 60, No. 163, Wednesday August 23, 1995. Once the limits are created, they are exported to a shapefile using CARIS' "Import SHP File" utility. Digital limits of the Exclusive Economic Zone for the Atlantic coast of the United States are contained within a zipped file. Within the zipped file is a shapefile and a text file detailing the individual coordinates. Inner EEZ (SLA): The Submerged Lands Act (SLA) of 1953 grants individual States rights to the natural resources of submerged lands from the coastline to no more than 3 nautical miles (5.6 km) into the Atlantic, Pacific, the Arctic Oceans, and the Gulf of Mexico. The only exceptions are Texas and the west coast of Florida, where State jurisdiction extends from the coastline to no more than 3 marine leagues (16.2 km) into the Gulf of Mexico. This data set contains the Submerged Lands Act (SLA) boundary line (also known as State Seaward Boundary (SSB), or Fed State Boundary) in ESRI shapefile formats for the BOEM Atlantic Region. The SLA boundary defines the seaward limit of a state's submerged lands and the landward boundary of federally managed OCS lands. In the BOEM Atlantic Region it is projected 3 nautical miles offshore from the baseline. Further information on the SLA and development of this line from baseline points can be found in OCS Report MMS 99-0006: Boundary Development on the Outer Continental Shelf http://www.boemre.gov/itd/pubs/1999/99-0006.pdf. Due to slight differences in process and purpose, NOAA's 3 nautical mile line depicted on its charts may differ in some areas from the SLA boundary depicted on BOEM maps and OPDs and should not be confused with the SLA boundary. Therefore this boundary is the only boundary that should be used to depict state/federal seperation of jurisdiction for submerged lands. Because GIS projection and topology functions can change or generalize coordinates, these GIS files are considered to be approximate and are NOT an OFFICIAL record for the exact Submerged Lands Act Boundary. The Official Protraction Diagrams (OPDs) and Supplemental Official Block Diagrams (SOBDs) serve as the legal definition for offshore boundary coordinates and area descriptions.

Copyright Text: NOAA's Ocean Service, Office for Coastal Management (OCM)

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Last Edit Date: 7/24/2023 7:18:55 PM

Schema Last Edit Date: 7/24/2023 7:18:55 PM

Data Last Edit Date: 8/23/2017 8:21:51 PM

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