The Planning Act 2008 (Commencement No. 3) (England) Order 2017. Comes into force 1st January 2018. Sections 14(1)(m) and (n), 27 and 28.
This Order brings into force provisions of the Planning Act 2008 which determine when development relating to the transfer of water resources or to the construction or alteration of a dam or reservoir will constitute a nationally significant infrastructure project.