OCS BOEM Offshore Boundary Lines

Type  Enterprise Geodatabase Feature Class

Tags  BOEM, Bureau of Ocean Energy Management, Offshore Marine Cadastre, OMC, Official Submerged Lands Act Boundary, Outer Continental Shelf Lands Act, OCSLA, Limit of “8(g) Zone”, Continental Shelf Boundary, Official Protraction Diagrams, OPDs, Supplemental Official Block Diagrams, SOBDs, Outer Continental Shelf, OCS, Renewable Energy, Conventional Energy, Energy, BDS, Boundary Delineation System, Alaska, Pacific, Gulf of Mexico, Atlantic, U.S. Territories, Administrative, Oil, Gas, Wind, Marine Minerals, Cadastre Theme, ISO 19115

Summary

Boundary lines and other cadastre information the BOEM produces are generated in accordance with 30 Code of Federal Regulations (CFR) Part 556.8 Subpart A, (formerly Part 256.8 Subpart A (2010)) to support Federal land ownership and mineral resource management.

Description

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.

Credits

Bureau of Ocean Energy Management (BOEM), Office of Strategic Resources (OSR), Geospatial Services Division (GSD)

Use limitations

https://www.usa.gov/publicdomain/label/1.0/

Extent

Scale Range

Maximum (zoomed in)  1:5,000
Minimum (zoomed out)  1:150,000,000

Topics and Keywords  ▼►

Themes or categories of the resource Boundaries, Oceans, Planning & Cadastral

Content type Downloadable Data
Export to FGDC CSDGM XML format as Resource Description No

Citation  ▼►

Title OCS BOEM Offshore Boundary Lines
Creation date 2024-02-23

Presentation formats digital map

Citation Contacts  ▼►

Responsible party - publisher 
Individual's name Geospatial Services Division
Organization's name Bureau of Ocean Energy Management (BOEM)
Contact's position Chief

Contact information ▼►
Address 
Type 
e-mail address geoseas@boem.gov

Resource Details  ▼►

Dataset languages English (UNITED STATES)
Dataset character set utf8 - 8 bit UCS Transfer Format

Spatial representation type vector

Processing environment Microsoft Windows Server 2016 Technical Preview Version 10.0 (Build 17763) ; Esri ArcGIS 13.0.3.36057

Credits 
Bureau of Ocean Energy Management (BOEM), Office of Strategic Resources (OSR), Geospatial Services Division (GSD)

ArcGIS item properties 
Name ⇔
Location ⇔
Access protocol ⇔

Extents  ▼►

Extent 
Description 
National Dataset

Geographic extent 
Bounding rectangle 
West longitude -180
East longitude 180
South latitude 16.972687
North latitude 74.987415

Extent in the item's coordinate system 
westBL ⇔ -180.000000
eastBL ⇔ 180.000000
southBL ⇔ 16.972687
northBL ⇔ 74.987415
exTypeCode ⇔ Yes

Resource Points of Contact  ▼►

Point of contact - publisher 
Individual's name Geospatial Services Division
Organization's name Bureau of Ocean Energy Management (BOEM)
Contact's position Chief

Contact information ▼►
Address 
Type 
e-mail address geoseas@boem.gov

Resource Maintenance  ▼►

Resource maintenance 
Update frequency as needed

Resource Constraints  ▼►

Constraints 
Limitations of use 
https://www.usa.gov/publicdomain/label/1.0/

Spatial Reference  ▼►

ArcGIS coordinate system 
Type ⇔ Geographic
Geographic coordinate reference ⇔ GCS_WGS_1984
Coordinate reference details ⇔ 
GeographicCoordinateSystem 
WKID 4326
XOrigin -400
YOrigin -400
XYScale 999999999.99999988
ZOrigin -100000
ZScale 10000
MOrigin -100000
MScale 10000
XYTolerance 8.983152841195215e-09
ZTolerance 0.001
MTolerance 0.001
HighPrecision true
LeftLongitude -180
LatestWKID 4326
WKT GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433],AUTHORITY["EPSG",4326]]

Reference system identifier 
Dimension horizontal
Value 4326
Codespace EPSG
Version ⇔ 6.2(3.0.1)


Spatial Data Properties  ▼►

Vector ▼►
Level of topology for this dataset ⇔ geometry only

Geometric objects 
Feature class name CDR_BOUNDARIES_L_NGDA
Object type ⇔ composite
Object count ⇔ 13
ArcGIS Feature Class Properties ▼►
Feature class name CDR_BOUNDARIES_L_NGDA
Feature type ⇔ Simple
Geometry type ⇔ Polyline
Has topology ⇔ FALSE
Feature count ⇔ 13
Spatial index ⇔ TRUE
Linear referencing ⇔ FALSE

Data Quality  ▼►

Scope of quality information ▼►
Resource level dataset

Lineage  ▼►

Lineage statement 
This national dataset was created using data from both TIMS and BDS.  The data generated from TIMS was imported from an oracle database into a geodatabase using the TIMS to BDS ETL.  The data is stored in the applicable NAD27 UTM/SPCS (Gulf o Mexico), NAD83 UTM (Atlantic, Alaska, and Pacific Coast, Puerto Rico, and U.S. Virgin Islands) and WGS84 (Hawaii and Pacific Territories) and appended to the WGS84 Geographic national geodatabase to display as the OCS BOEM Offshore Boundary Lines national dataset. The BDS OMC Dataset Creator was used to generate the National dataset and merged segments split at the OCS block limit. This November 10, 2023, dataset is to be used as official cadastre data and is available for download.

Distribution  ▼►

Distribution format 
Name Enterprise Geodatabase Feature Class
Version SQL

Fields  ▼►

Details for object CDR_BOUNDARIES_L_NGDA ▼►
Type ⇔ Feature Class
Row count ⇔ 13
Definition 
OCS BOEM Offshore Boundary Lines

Definition source 
BOEM

Field OBJECTID ▼►
Alias ⇔ OBJECTID
Data type ⇔ OID
Width ⇔ 4
Precision ⇔ 0
Scale ⇔ 0

Field description ⇔ 
Internal feature number.

Description source ⇔ 
Esri

Description of values ⇔ 
Sequential unique whole numbers that are automatically generated.

Field Shape ▼►
Alias ⇔ SHAPE
Data type ⇔ Geometry
Width ⇔ 0
Precision ⇔ 0
Scale ⇔ 0

Field description ⇔ 
Feature geometry.

Description source ⇔ 
Esri

Description of values ⇔ 
Coordinates defining the features.

Field Shape_Length ▼►
Alias ⇔ Shape_Length
Data type ⇔ Double
Width ⇔ 8
Precision ⇔ 0
Scale ⇔ 0

Field description ⇔ 
Length of feature in internal units.

Description source ⇔ 
Esri

Description of values ⇔ 
Positive real numbers that are automatically generated.

Field BDRY_TYPE_CODE ▼►
Alias ⇔ Boundary Type
Data type ⇔ String
Width ⇔ 3
Precision ⇔ 0
Scale ⇔ 0

Field description 
The indicator used to identify the type of offshore boundary line.

Description source 
BOEM Boundary Delineation System

Field BDRY_NAME_CODE ▼►
Alias ⇔ Name Code
Data type ⇔ SmallInteger
Width ⇔ 2
Precision ⇔ 0
Scale ⇔ 0

Field description 
This is a code used to identify the official name of a boundary.

Description source 
BOEM Boundary Delineation System

Metadata Details  ▼►

Metadata language English (UNITED STATES)
Metadata character set utf8 - 8 bit UCS Transfer Format

Metadata identifier D17E35C4-CEB0-4BE9-86E3-8F2677BF2B61

Scope of the data described by the metadata dataset
Scope name dataset

Last update ⇔ 2024-09-25 

ArcGIS metadata properties
Metadata format ArcGIS 1.0
Standard or profile used to edit metadata NAP

Created in ArcGIS for the item 2024-07-31 16:01:22
Last modified in ArcGIS for the item 2024-09-25 20:36:38

Automatic updates
Have been performed Yes
Last update 2024-07-31 16:25:58

Metadata Contacts  ▼►

Metadata contact - publisher 
Individual's name Geospatial Services Division
Organization's name Bureau of Ocean Energy Management (BOEM)
Contact's position Chief

Contact information ▼►
Address 
Type 
e-mail address geoseas@boem.gov

Metadata Maintenance  ▼►

Maintenance 
Update frequency as needed