The National Measurement and Regulation Office (NMRO) was an executive agency of the UK Government's Department for Business, Innovation and Skills (BIS).

Its function were to provide a measurement infrastructure which supports innovation, facilitates fair competition, promotes international trade and protects consumers and the environment.

The agency was created as National Weights and Measures Laboratory (NWML) in 1987 from a reorganisation of the Standards Department when it moved from its previous location in central London to a new, purpose-built facility in Teddington which was officially opened by the Duke of Kent on the 9th of April 1987.

In addition, the NMO / NMRO acts as a National Enforcement Authority for a range of EU-based environmental legislation and carries out commercial activities which rely on measurement expertise.

They also provided calibration and testing services to both local authorities and private businesses, as well as training in aspects of legal metrology to national and international clients.