COLREGS Demarcation Lines
Office for Coastal Management
Data Set
(DS)
| ID: 56121
| Published / External
Created: 2019-04-25
|
Last Modified: 2023-05-30
Project (PRJ) | ID: 37232
ID: 56121
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | COLREGS Demarcation Lines |
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Short Name | |
* Status | Completed |
Creation Date | |
Revision Date | |
• Publication Date | 2019-05-16 |
* » Abstract |
U.S. collision regulation boundaries delineate those waters upon which mariners shall comply with the International Regulations for Preventing Collisions at Sea, 1972 (72 COLREGS) and those waters upon which mariners shall comply with the Inland Navigation Rules. The waters inland of these lines are subject to the Inland Navigation Rules Act of 1980. The waters outside these lines are subject to the International Navigation Rules of the International Regulations for Preventing Collisions at Sea, 1972 (COLREGS). The Coast Guard has the legal authority to effect regulatory changes to COLREGS. Records in this database are derived from descriptions published in the Code of Federal Regulations Title 33, Part 80 and are for planning purposes only. |
* Purpose |
To support ocean planning activities pursuant to the Executive Order Regarding the Ocean Policy to Advance the Economic, Security, and Environmental Interests of the United States, the Energy Policy Act, the National Environmental Policy Act, the Rivers and Harbors Act, and the Coastal Zone Management Act. |
Notes | |
Other Citation Details | |
• Supplemental Information |
Bureau Code: 006:48, Program Code: 006:055 |
DOI (Digital Object Identifier) | |
DOI Registration Authority | |
DOI Issue Date |
Keywords
Theme Keywords
Thesaurus | Keyword |
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Global Change Master Directory (GCMD) Science Keywords | EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL GOVERNANCE/MANAGEMENT |
ISO 19115 Topic Category | boundaries |
ISO 19115 Topic Category | oceans |
ISO 19115 Topic Category | transportation |
None | coastal |
None | planning |
None | renewable energy |
Temporal Keywords
Thesaurus | Keyword |
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* Spatial Keywords
Thesaurus | Keyword |
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Global Change Master Directory (GCMD) Location Keywords | CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA |
None | Territorial Sea |
None | United States of America |
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Physical Location
• » Organization | |
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• » City | Charleston |
• » State/Province | SC |
• Country | |
• » Location Description |
Data Set Information
* Data Set Scope Code | Data Set |
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• Data Set Type | |
• Maintenance Frequency | As Needed |
Maintenance Note | |
» Data Presentation Form | Map (digital) |
• Entity Attribute Overview |
effectiveDate, state, boundaryIdentifier, instanceCode |
Entity Attribute Detail Citation | |
Entity Attribute Detail URL | |
Distribution Liability |
https://www.marinecadastre.gov/about/disclaimer.html |
Data Set Credit | U.S. Coast Guard, NOAA Office for Coastal Management, Bureau of Ocean Energy Management |
Support Roles
* » Support Role | Point of Contact |
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* » Date Effective From | 2019-05 |
Date Effective To | |
Organization | NOAA Office for Coastal Management (NOAA/OCM) |
Address |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address | coastal.info@noaa.gov |
Phone | (843) 740-1202 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
Business Hours | |
Contact Instructions |
* » Support Role | |
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* Contact Instructions |
Extents
Currentness Reference | Publication Date |
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Extent Group 1
Extent Description |
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Extent Group 1 / Geographic Area 1
* » W° Bound | -178.110405 |
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* » E° Bound | 166.634428 |
* » N° Bound | 71.182005 |
* » S° Bound | -14.295391 |
* » Description |
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Extent Group 1 / Time Frame 1
* » Time Frame Type | Discrete |
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* » Start | 2019-05-16 |
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Alternate End As Of Info | |
Description |
publication date |
Spatial Information
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Vector Representation
Topology Level | |
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Complex Object Present? | No |
Complex Object Count | |
Composite Object Present? | No |
Composite Object Count | |
Curve Object Present? | Yes |
Curve Object Count | |
Point Object Present? | No |
Point Object Count | |
Solid Object Present? | No |
Solid Object Count | |
Surface Object Present? | No |
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Reference Systems
Reference System
EPSG Code | EPSG:4269 | ||||||||||||||||||||||||||||
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Access Information
Data License | |
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Data License URL | |
Data License Statement | |
* » Security Class | Unclassified |
* Security Classification System | |
Security Handling Description | |
• Data Access Policy | |
» Data Access Procedure | |
• » Data Access Constraints | |
• Data Use Constraints |
For coastal and ocean planning |
Metadata Access Constraints | |
Metadata Use Constraints |
Distribution Information
Start Date | |
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» Download URL | https://marinecadastre.gov/data/ |
Distributor | |
File Name | |
Description |
MarineCadastre.gov Data Registry |
File Date/Time | |
File Type (Deprecated) | |
Distribution Format | |
File Size | |
Application Version | |
Compression | |
Review Status |
Start Date | |
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» Download URL | https://marinecadastre.gov/downloads/data/mc/COLREGSDemarcationLine.zip |
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URLs
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Issues
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Issue |
Technical Environment
Description |
Microsoft Windows, ArcGIS Pro |
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Data Quality
Representativeness | |
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Accuracy |
Untested |
Analytical Accuracy | |
Horizontal Positional Accuracy |
Compiled to meet 10 meters horizontal accuracy at 95% confidence level |
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Completeness Report |
Untested |
Conceptual Consistency |
These data are logically consistent |
» Quality Control Procedures Employed |
Data Management
» Have Resources for Management of these Data Been Identified? | |
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» Approximate Percentage of Budget for these Data Devoted to Data Management | |
» Do these Data Comply with the Data Access Directive? | |
» Is Access to the Data Limited Based on an Approved Waiver? | |
» If Distributor (Data Hosting Service) is Needed, Please Indicate | |
» Approximate Delay Between Data Collection and Dissemination | |
» If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed |
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» Actual or Planned Long-Term Data Archive Location | |
» If World Data Center or Other, Specify | |
» If To Be Determined, Unable to Archive, or No Archiving Intended, Explain |
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» Approximate Delay Between Data Collection and Archiving | |
» How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive? |
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Lineage
» Lineage Statement |
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Sources
Citation Title | 33 CFR Part 80 COLREGS Demarcation Lines |
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Contact Role Type | Originator |
Contact Type | Organization |
Contact Name | U.S. Coast Guard |
Publish Date | 1981-05-26 |
Extent Type | Discrete |
Extent Start Date/Time | 1981 |
Extent End Date/Time | |
Scale Denominator | |
Citation URL | https://www.ecfr.gov/current/title-33/chapter-I/subchapter-D/part-80 |
Citation URL Name | |
Citation URL Description | |
Source Contribution |
Geographic coordinates expressed in terms of latitude or longitude |
Citation Title | COLREGS Demarcation Lines |
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Contact Role Type | Publisher |
Contact Type | Organization |
Contact Name | NOAA Office of Coast Survey |
Publish Date | |
Extent Type | Discrete |
Extent Start Date/Time | 2018-07-01 |
Extent End Date/Time | |
Scale Denominator | |
Citation URL | https://seamlessrnc.nauticalcharts.noaa.gov/arcgis/rest/services/RNC/NOAA_RNC/MapServer |
Citation URL Name | Source Online Linkage |
Citation URL Description |
URL where the source data were originally accessed. |
Source Contribution |
Raster display of NOAA nautical charts containing COLREGS Demarcation Lines |
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Process Steps
Process Step Number | 1 |
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» Description |
• Original source data and metadata acquired • Heads up digitize, or coordinate input from original sources • Cross reference between sources • Dissolved unnecessary polyline splits and removed multiparts • On MMS layers dissolved "BDRY_APRV_" • On OC layers dissolved "APPRVDATE" • Populated attribute contents • Validated geometry |
Process Date/Time | 2010-01-01 00:00:00 |
Process Contact | |
Phone (Voice) | |
Email Address | |
Source |
Process Step Number | 2 |
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» Description |
• Create a new map document RNC service http://egisws02.nos.noaa.gov/ArcGIS/services/NOAA_RNC • Add original feature class and scan for features in CollisionRegulationsBoundary feature class which were missing on RNC • Search COLREGS in the CFR to confirm presence in original feature class • Edit identified features, including descriptions and related fields in the attribute table • Use CFR list of up-to-date locations of Collision Regulations to verify their locations in Atlantic, Gulf of Mexico, and Pacific Oceans |
Process Date/Time | 2012-01-01 00:00:00 |
Process Contact | |
Phone (Voice) | |
Email Address | |
Source |
Process Step Number | 3 |
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» Description |
• Create a new map document RNC service http://egisws02.nos.noaa.gov/ArcGIS/services/NOAA_RNC • Add original feature class and scan for features in CollisionRegulationsBoundary feature class which were missing on RNC • Create bookmarks in ArcMap of missing or erroneous features and features whose geometry does not match their RNC counterpart • Check current CFR to confirm presence of features in original feature class and to see if new features need to be added • Edit identified features, including descriptions and related fields in the attribute table |
Process Date/Time | 2014-07-01 00:00:00 |
Process Contact | |
Phone (Voice) | |
Email Address | |
Source |
Process Step Number | 4 |
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» Description |
• Compare original data from MarineCadastre.gov data registry to the 2014 Code of Federal Regulations (CFR) and Raster Navigational Charts (RNC) • Use smallest scale RNC to evaluate features • Add new features from CFR and RNC, and remove old features • Update attribute fields |
Process Date/Time | 2015-04-01 00:00:00 |
Process Contact | |
Phone (Voice) | |
Email Address | |
Source |
Process Step Number | 5 |
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» Description |
• Download new version of CFR from https://www.govinfo.gov/content/pkg/CFR-2018-title33-vol1/pdf/CFR-2018-title33-vol1.pdf • Adjust geometry of updated COLREGS lines later than 07/01/2014 • These include: 80.155, 80.160, 80.165, 80.501, 80.502, 80.712, 80.748, 80.815, 80.1420, 80.1430, 80.1440, 80.1450, 80.1460, 80.1470 • Use RNC map service as a guide to recreate new geometries |
Process Date/Time | 2019-02-01 00:00:00 |
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Acquisition Information
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FAQs
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Related Items
Item Type | Relationship Type | Title |
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Catalog Details
Catalog Item ID | 56121 |
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Metadata Record Created By | Anna Verrill |
Metadata Record Created | 2019-04-25 11:47+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2023-05-30 18:09+0000 |
Metadata Record Published | 2019-04-25 |
Owner Org | OCM |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2019-04-25 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2020-04-25 |
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