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Outer Continental Shelf OCS Protraction Diagrams Leasing Maps [Pennsylvania]

Pennsylvania Spatial Data Access (PASDA) · 2025 Full Details

Full Details

Title
Outer Continental Shelf OCS Protraction Diagrams Leasing Maps [Pennsylvania]
Description
Protractions are part of BOEM's Offshore Marine Cadastre Data Collection which includes cadastral data produced by BOEM in accordance with 30 Code of Federal Regulations (CFR) Part 556.8 Subpart A, (formerly Part 256.8 Subpart A (2010)), 30 CFR 585.205 and 30 CFR 581.15 to support Federal jurisdiction on the OCS for managing the nation's offshore resources. These data contain a national scale spatial footprint of the outer boundaries of the Bureau of Ocean Energy Management's (BOEM's) Official Protraction Diagrams (OPDs). These polygons are clipped to the Submerged Land Act Boundary and Continental Shelf Boundaries and are updated as needed. OPDs are mapping products produced and used by the BOEM to delineate areas available for potential offshore mineral leases, determine the State/Federal offshore boundaries, and determine the limits of revenue sharing and other boundaries to be considered when leasing offshore waters. The OPDs serve as the legal definition for BOEM offshore boundary coordinates and area descriptions. These data show only the outline of the maps that are available from BOEM. Only the most recently published paper or pdf versions of the OPDs should be used for official or legal purposes. Further information on the history of the development of OPDs can be found in OCS Report MMS 99-0006: Boundary Development on the Outer Continental Shelf. These data were created in the applicable NAD83 UTM or NAD27 UTM/SPCS Projection and re-projected to GCS WGS84 (EPSG 4326) for management in BOEM's enterprise GIS. However, this service in this collection has been published in WGS 1984 Web Mercator Auxiliary Sphere (EPSG 3857). Because GIS projection and topology functions can change or generalize coordinates, these data are NOT an OFFICIAL record for the exact boundaries. These data are to be used for Cartographic purposes only and should not be used to calculate area.
Creator
Homeland Infrastructure Foundation Level Data HIFLD
Publisher
Pennsylvania Spatial Data Access (PASDA)
Date Issued
2025
Access Rights
Public
Format
File
Language
English
Date Added
November 16, 2025
Provenance Statement
The metadata for this resource was last retrieved from PASDA on 2025-11-16.

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Cite and Reference

  • Citation
    Homeland Infrastructure Foundation Level Data HIFLD (2025). Outer Continental Shelf OCS Protraction Diagrams Leasing Maps [Pennsylvania]. Pennsylvania Spatial Data Access (PASDA). https://www.pasda.psu.edu/uci/DataSummary.aspx?dataset=9178 (dataset)
  • BTAA Geoportal Link

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