| Navn | Type | Lengde | Multiplisitet | 
                
                    
                        |  | CharacterString |  | 0..1 | 
                    
                        |  | CharacterString |  | 1..1 | 
                    
                        |  | CharacterString |  | 1..1 | 
        
     
    
        
            
                
                    | Name | Type | English | Description | 
            
                
                    | classificationScheme | CharacterString |  | A description of the identification scheme (National, European, etc.) being used. | 
                
                    | localId | CharacterString |  | A local identifier, assigned by some authority.
-- Description --
NOTE It will often be a national hydrographic identifier. | 
                
                    | namespace | CharacterString |  | An indicator of the scope for the local identifier.
-- Description --
NOTE In the case of a national hydrographic identifier it should be a two-letter country code as per ISO 3166-1-Alpha-2. |