The Driver and Vehicle Licensing Agency DVLA is the organisation of UK Government responsible for maintaining a database of drivers and a database of vehicles in Great Britain; its counterpart in Northern Ireland is the Driver & Vehicle Agency (DVA). The agency issues driving licences, organises collection of vehicle excise duty and sells private number plates. The vehicle register held by DVLA is used in many ways, for example, it can be used to identify untaxed vehicles. This register is used by DVLA itself, but it can also be used by outside agencies. It is also used to produce drivers' licences and to assist bodies such as the Driving Standards Agency, police and courts in the enforcement of legislation concerning driving entitlements and road safety.