HIFLD OPEN Submerged Land Act (SLA) Boundary

Principal Investigator(s):  View help for Principal Investigator(s) Bureau of Ocean Energy Management (BOEM); Department of Homeland Security

Version:  View help for Version V1

Name File Type Size Last Modified
metadata.xml application/xml 19.3 KB 11/25/2025 01:55:PM
submerged-land-act-sla-boundary-file_geodatabase.zip application/zip 980.3 KB 11/06/2025 07:36:PM
submerged-land-act-sla-boundary-geojson.zip application/zip 3.6 MB 11/06/2025 07:37:PM
submerged-land-act-sla-boundary-shapefile.zip application/zip 2.9 MB 11/06/2025 07:38:PM

Project Citation: 

Bureau of Ocean Energy Management (BOEM), and Department of Homeland Security. HIFLD OPEN Submerged Land Act (SLA) Boundary. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2025-11-25. https://doi.org/10.3886/E240658V1

Project Description

Project Title:  View help for Project Title HIFLD OPEN Submerged Land Act (SLA) Boundary
Summary:  View help for Summary These data contain a national scale Submerged Lands Act (SLA) boundary line, Limit of "8(g) Zone," line and Continental Shelf Boundary. The SLA boundary defines the seaward limit of a state's submerged lands and the landward boundary of federally managed OCS lands. The Outer Continental Shelf Lands Act "8(g) Zone" lies between the Submerged Lands Act (SLA) boundary line and a line projected 3 nautical miles seaward of the SLA boundary line. Within this zone, oil and gas revenues are shared with the coastal state(s). The Continental Shelf Boundary defines the seaward limit of federally managed OCS lands. The line depicts the limit of U.S. jurisdiction for offshore mineral development. 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.
Original Distribution URL:  View help for Original Distribution URL https://hifld-geoplatform.hub.arcgis.com/

Scope of Project

Subject Terms:  View help for Subject Terms HIFLD Open; GIS; BOEM; HIFLD; Feature Service; SDI; NSDI; Open Data; FGDC; Emergency Preparedness; Disaster Planning; Infrastructure
Geographic Coverage:  View help for Geographic Coverage United States
Time Period(s):  View help for Time Period(s) 1/4/2019 – 1/4/2019
Data Type(s):  View help for Data Type(s) geographic information system (GIS) data
Collection Notes:  View help for Collection Notes Archived from the HIFLD Open GIS data repository, which was deactivated on August 26, 2025. (Downloaded 08/26)


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Published Versions

V1 [2025-11-25]

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DDI 2.5

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