In England and Wales, a nationally significant infrastructure project (NSIP) is a major infrastructure development that bypasses normal local planning requirements. These include proposals for power plants, large renewable energy projects, new airports and airport extensions, and major road and rail projects. The NSIP nomenclature began to be used in 2008, and since April 2012 these projects have been managed by the Planning Inspectorate.
- ^ "Thames Tideway Tunnel". planninginspectorate.gov.uk. The Planning Inspectorate. Retrieved 27 June 2017.