In 2005 the central government of the UK has required local authorities to modernise their processes to take advantage of new technologies and provide better linked up services to their residents and businesses.
This has ultimately meant that a resident may notify a council of their change of address at one place without having to repeat the process throughout a number of service areas within an authority.
However, the development of the NLPG has been held back by arguments between local authorities and the national mapping agency, Ordnance Survey, who are required to act as a trading entity.
This has led to the NLPG being unable to compel local authorities to maintain their LLPGs as well as protracted negotiations regarding issues of ownership of address data.
Through agreement between Ordnance Survey and Scotland's Improvement Service, working on behalf of Scottish Local Government, the National Address Gazetteer includes DT