Authority Token for URN Definition types + sub-type Policies
OGP Surveying & Positioning Committee (formerly known as the European Petroleum Survey Group) EPSG codes are provided in a database available from http://www.EPSG.org/Geodetic.html  EPSG  def:axis code = 2*number ; Code from EPSG coordinate axis table version = “” 
OGP Surveying & Positioning Committee (formerly known as the European Petroleum Survey Group) EPSG codes are provided in a database available from http://www.EPSG.org/Geodetic.html  EPSG  def:axisDirection code = 2*number ; Code from EPSG coordinate axis name table version = “” 
OGP Surveying & Positioning Committee (formerly known as the European Petroleum Survey Group) EPSG codes are provided in a database available from http://www.EPSG.org/Geodetic.html  EPSG  def:coordinateOperation code = 2*number ; Code from EPSG coordinate operation table version = “” 
OGP Surveying & Positioning Committee (formerly known as the European Petroleum Survey Group) EPSG codes are provided in a database available from http://www.EPSG.org/Geodetic.html  EPSG  def:crs code = 2*number ; Code from EPSG coordinate reference system table version = “” 
OGP Surveying & Positioning Committee (formerly known as the European Petroleum Survey Group) EPSG codes are provided in a database available from http://www.EPSG.org/Geodetic.html  EPSG  def:cs code = 2*number ; Code from EPSG coordinate system table version = “” 
OGP Surveying & Positioning Committee (formerly known as the European Petroleum Survey Group) EPSG codes are provided in a database available from http://www.EPSG.org/Geodetic.html  EPSG  def:datum code = 2*number ; Code from EPSG datum table version = “” 
OGP Surveying & Positioning Committee (formerly known as the European Petroleum Survey Group) EPSG codes are provided in a database available from http://www.EPSG.org/Geodetic.html  EPSG  def:ellipsoid code = 2*number ; Code from EPSG ellipsoid table version = “” 
OGP Surveying & Positioning Committee (formerly known as the European Petroleum Survey Group) EPSG codes are provided in a database available from http://www.EPSG.org/Geodetic.html  EPSG  def:meridian code = 2*number ; Code from EPSG prime meridian table version = “” 
OGP Surveying & Positioning Committee (formerly known as the European Petroleum Survey Group) EPSG codes are provided in a database available from http://www.EPSG.org/Geodetic.html  EPSG  def:method code = 2*number ; Code from EPSG coordinate operation method table version = “” 
OGP Surveying & Positioning Committee (formerly known as the European Petroleum Survey Group) EPSG codes are provided in a database available from http://www.EPSG.org/Geodetic.html  EPSG  def:parameter code = 2*number ; Code from EPSG coordinate operation parameter table version = “” 
IETF RFC 4646 IETF-RFC-4646  def:dataType  
ISO 19107:2003 Spatial Schema ISO-19107  def:objectType code = 2*URNchar ; Class name from ISO 19107:2003 
ISO 19108:2002 Temporal Schema ISO-19108  def:objectType code = 2*URNchar ; Class name from ISO 19108:2002 
ISO 19119:2006 Services ISO-19119  def:classificationScheme  
ISO 8601 ISO-8601  def:trs  
OGC Filter Encoding Standard OGC-FES  def:queryLanguage  
OGC GeoXACML standard OGC-GeoXACML  def:function  
OGC CSW ebRIM profile standard OGC-CSW-ebRIM  def:dataType  
OGC CSW ebRIM profile standard OGC-CSW-ebRIM  def:associationType  
OGC CSW ebRIM profile standard OGC-CSW-ebRIM  def:objectType  
OGC CSW ebRIM profile standard OGC-CSW-ebRIM  def:queryLanguage  
OGC CSW ebRIM profile standard OGC-CSW-ebRIM  def:registryPackage  
OGC CSW ebRIM profile standard OGC-CSW-ebRIM  def:classificationScheme  
OGC Web Feature Service OGC-WFS  def:storedQuery  
Open Geospatial Consortium OGC  def:axisDirection  
Open Geospatial Consortium OGC  def:crs  
Open Geospatial Consortium OGC  def:dataType  
Open Geospatial Consortium OGC  def:derivedCRSType  
Open Geospatial Consortium OGC  def:featureType  
Open Geospatial Consortium OGC  def:group  
Open Geospatial Consortium OGC  def:meaning  
Open Geospatial Consortium OGC  def:nil code = "missing" / "unknown" / "withheld" / "inappplicable" version = “” 
Open Geospatial Consortium OGC  def:propertyType  
Open Geospatial Consortium OGC  def:rangeMeaning  
Open Geospatial Consortium OGC  def:referenceSystem  
Open Geospatial Consortium OGC  def:serviceType  
Open Geospatial Consortium OGC  def:verticalDatumType  
Open Geospatial Consortium OGC  doc See urn:OGC:doc:pp:nts-doc:1.0 
OGC Naming Authority OGC-NA  type code = 2*URNchar ; token from http://www.opengis.net/register/ogc-na/type 
OGC Naming Authority OGC-NA  register  
OGC Naming Authority OGC-NA  def-type code = 2*URNchar ; token from http://www.opengis.net/register/ogc-na/def-type 
OGC Naming Authority OGC-NA  doc-type code = 2*URNchar ; token from http://www.opengis.net/register/ogc-na/doc-type 
OGC Naming Authority OGC-NA  doc-element-type code = 2*URNchar ; token from http://www.opengis.net/register/ogc-na/doc-element-type 
OGC Naming Authority OGC-NA  spec-element-type code = 2*URNchar ; token from http://www.opengis.net/register/ogc-na/spec-element-type 
OGC Naming Authority OGC-NA  authority code = 2*URNchar ; token from http://www.opengis.net/register/ogc-na/authority 
Systeme International d'Unites http://www.bipm.fr/en/si/ SI  def:uom code = 1*URNchar ; Symbol from tables in ISO 1000:1992 version = “” 
Unified Code for Units of Measure http://aurora.regenstrief.org/UCUM UCUM  def:uom code = 1*URNchar ; Case sensitive UCUM code version = “” 
Defence Geospatial Information Working Group DGIWG  def:classificationScheme  
United Nations Statistics Division UNSD  def:classificationScheme