Bureau of Ocean Energy Management, Geospatial Services Division
20060210
Outer Continental Shelf Submerged Lands Act Boundary - Pacific Region - West Coast NAD83
Map
Digital Offshore Cadastre
current
Sterling, Virginia
Bureau of Ocean Energy Management, Geospatial Services Division
https://www.boem.gov/PC-FEDSTATE.zip
https://www.boem.gov/Oil-and-Gas-Energy-Program/Mapping-and-Data/Pacific.aspx
https://gis.boem.gov/arcgis/rest/services/BOEM_BSEE/POC_Layers/MapServer/4
https://gis.boem.gov/arcgis/services/BOEM_BSEE/POC_Layers/MapServer/WMSServer/
Bureau of Ocean Energy Management, Geospatial Services Division
2002
Technical Information Management System (TIMS), Mapping
System, Block and Boundary Component
Map
Sterling, Virginia
Bureau of Ocean Energy Management, Mapping and Boundary
Branch
This data set contains the Submerged Lands Act (SLA)boundary line (also known as the State Seaward Boundary (SSB) and Fed State Boundary) for the BOEM Pacific Region in ESRI ArcGIS shape file format. The SLA defines the seaward limit of a state owned submerged lands and the landward boundary of federally managed Outer Continental Shelf (OCS) lands. In the BOEM Pacific Region the SLA is projected 3 nautical miles offshore from the coastal baseline. Further information on the SLA and development of this line from baseline points can be found in OCS Report BOEM 99-0006: Boundary Development on the Outer Continental Shelf. https://www.boem.gov/BOEM-Newsroom/Library/Publications/1999/99-0006-pdf.aspx The SLA boundary was developed using nautical charts, topographic maps, and hydrographic surveys to identify coastal baseline points. For California, there was a wide range of map scales used (1:200 – 1:100,000). The Minerals Management Service (MMS - the predecessor bureau to BOEM) used mapping software that was developed in-house to mathematically project the SLA boundary 3 nautical miles seaward from the baseline. For purposes of the SLA, all coordinates are assumed as absolute values with a precision of three decimals of a meter. For purposes other than the SLA, the actual positional precision for a scale of 1:40,000 is approximately 23 meters.
In 1992, MMS adopted NADCON v.2.00 or better as the bureau standard horizontal datum transformation software, and reiterated that, for its purposes, “the World Geodetic System of 1984 (WGS 84) is considered equivalent to NAD 83 offshore of Alaska and the conterminous United States.” 57 Fed. Reg. 5168 (February 12, 1992).
On December 24, 2014, the SLA boundary offshore of California was fixed (permanently immobilized) by a decree issued by the U.S. Supreme Court. United States v. California, 135 S. Ct. 563 (2014). For a detailed discussion on the fixing of the SLA boundary for California, please see https://www.boem.gov/Oil-and-Gas-Energy-Program/Mapping-and-Data/Multi-Purpose-Marine-Cadastre-Map-Viewer/Court-Decisions.aspx
Because GIS projection and topology functions can change or generalize coordinates, these GIS shape files are NOT an OFFICIAL record for the exact Submerged Lands Act Boundary.The official record is reflected through the coordinates listed in the decree, and the boundary shown on the BOEM Supplemental Official Block Diagrams, which are available at https://www.boem.gov/Oil-and-Gas-Energy-Program/Mapping-and-Data/Pacific.aspx
The Submerged Lands Act boundary line and other marine cadastre information generated by BOEM are 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.
The BOEM is making its existing cadastre data
available at https://www.boem.gov/Oil-and-Gas-Energy-Program/Mapping-and-Data/Index.aspx. These data
will include digital images of BOEM data at the regional, planning area,
Official Protraction Diagram (OPD), and Supplemental Official OCS Block
Diagram (SOBD) levels and digital spatial data in Arc/Info export or
ArcGIS shapefile format at the regional or planning area levels.
2002
Publication date
As needed
-124.86
-117.18
48.46
32.53
None
Offshore
Cadastre
Submerged Lands Act Boundary, SLA
State Seaward Boundary, SSB
Fed State Boundary
Outer Continental Shelf, OCS
Bureau of Ocean Energy Management, BOEM
Oil and gas
Three Mile Line
NGDA Portfolio Themes
NGDA
Water Oceans and Coasts Theme
National Geospatial Data Asset
None
USA
Pacific Ocean
Exclusive Economic Zone, EEZ
California, CA
Oregon, OR
Washington, WA
None. The Block and Boundary data is in the public
domain.
The data was developed within the U.S. Government; no
proprietary rights may be attached to them nor may they be sold to the
U.S. Government as part of any procurement of ADP products or services.
Bureau of Ocean Energy Management, Mapping and Boundary
Branch
Branch Chief, Geospatial Services Division
Branch Chief
Mailing address
45600 Woodland Road
Sterling
Virginia
20166
(703) 787-1312
(703) 787-1165
boemosr-gsd@boem.gov
https://www.boem.gov/sites/default/files/oil-and-gas-energy-program/Mapping-and-Data/Pacific-files/pc_sla.jpg
An image of the BOEM Pacific Region
Submerged Lands Act GIS data file.
GIF
Coverages were created in Arc/Info version
7.0.4 on a Sun Sparc Station 10 running Solaris 2.5.1 These coverages were later converted to ArcGIS shapefile format.
Bureau of Ocean Energy Management, Geospatial Services Division
1997-2002
Supplemental Official OCS Block Diagrams (SOBD s)
current version
Diagram
Sterling, Virginia
Bureau of Ocean Energy Management, Geospatial Services Division
SOBD s contain additional coordinate and area
calculations for individual blocks.
https://www.boem.gov/Oil-and-Gas-Energy-Program/Mapping-and-Data/Index.aspx
Bureau of Ocean Energy Management, Geospatial Services Division
200111
Technical Information Management System (TIMS), Mapping
System, Block and Boundary Component
Bureau of Ocean Energy Management, Pacific Region, Leasing
Activities Section
Unpublished material
Leases
Camarillo, California
Bureau of Ocean Energy Management, Pacific Region, Leasing
Activities Section
This Oracle database contains current
information on the status of Federal leases.
Bureau of Ocean Energy Management
200111
Technical Information Management System (TIMS), Lease
Administration Component
Coordinates for OCS blocks, baseline, and
projected boundaries are calculated quantities and have been defined to
be correct to 3 decimal places of a meter.
The entire NAD83 Submerged Lands Act (SLA) boundary line
in the BOEM Pacific Region is shown.
Coordinates for points forming
the Submerged Lands Act boundary line are calculated values to
3 decimal places of a meter in the TIMS database. However, GIS
functions which build topology, change projections, etc. may degrade
coordinate values. Furthermore, most of the SLA boundary consists of
true arcs, but has been approximated in these GIS files by straight
line segments. For these reasons, these GIS files are NOT an OFFICIAL
record.
Bureau of Ocean Energy Management, Geospatial Services Division
2002
TIMS, Mapping System, Block and Boundary Component
Map
Sterling, Virginia
Bureau of Ocean Energy Management, Mapping and Boundary
Branch
Computer program
2002
publication date
BOEM, TIMS
Source coordinates were taken from TIMS.
The source data for the Submerged Lands Act (SLA)
boundary line are baseline points in the TIMS Block and Boundary
database. In-house computer programs are used to generate points to
form this line at the appropriate distance from the baseline points. Source_Used_Citation_Abbreviation: BOEM, TIMS
20020524
Bureau of Ocean Energy Management, Mapping and
Boundary Branch
Branch Chief
Mailing address
45600 Woodland Road
Sterling
Virginia
20166
(703) 787-1312
(703) 787-1165
boemosr-gsd@boem.gov
U.S. Pacific Outer Continental Shelf (OCS)
Vector
0.00000001
0.00000001
Decimal degrees
North American Datum 1983
Geodetic Reference System 80
6378137 m
298.25722210088
The shape files contain the following
entities: Shape: PolyLine
Fnode: From node in ESRI notation
Tnode: To node in ESRI notation
Lpoly: Left polygon in ESRI notation
Rpoly: Right polygon in ESRI notation
Length: Line length in ESRI coverage units
Fedstate: Internal ESRI number
Fedstate_i: Internal ESRI number
BOEM_region: BOEM region code (P = Pacific)
Bdry_type: BOEM boundary type (S = SLA boundary)
Bdry_pt_pr: BOEM boundary point OPD number
Bdry_aprv_: BOEM boundary approval date (day-month-year)
Block_numb: BOEM block number the line segment is in
Bdry_nm_cd: BOEM boundary name code
Bdry_nm_tx: BOEM boundary name text
Bdry_cov_s: BOEM boundary cover sequence number
Bureau of Ocean Energy Management
Bureau of Ocean Energy Management, Mapping and
Boundary Branch
Mailing address
45600 Woodland Road
Sterling
Virginia
20166
(703) 787-1312
(703) 787-1165
boemosr-gsd@boem.gov
Digital Offshore Cadastre
As is. No responsibility is assumed for the
correctness of this data.
ARCE
7.0.4
1.9 Mbytes
https://www.boem.gov/Oil-and-Gas-Energy-Program/Mapping-and-Data/Index.aspx
From the GIS Files section of the webpage, click on the shapefile
you wish to download. The downloaded file will need to be unzipped.
Dell Pentium server running
Windows NT 4.0
ASHP
3
1.6 Mbytes
https://www.boem.gov/Oil-and-Gas-Energy-Program/Mapping-and-Data/Index.aspx
From the GIS Files section of the webpage, click on the shapefile
you wish to download. The downloaded file will need to be unzipped.
Dell Pentium server running
Windows NT 4.0
None
20210201
20170805
20201129
Bureau of Ocean Energy Management, Mapping and
Boundary Branch
Branch Chief
Mailing address
45600 Woodland Road
Sterling
Virginia
20166
(703) 787-1312
(703) 787-1165
boemosr-gsd@boem.gov
Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
Local time