Collection Minerals technical advice notes (MTANs) Technical guidance to supplement our minerals planning policy. Part of: Planning policy and guidance: minerals and mining (Sub-topic) First published: 31 March 2004 Last updated: 31 January 2009 Publications Minerals technical advice note (MTAN) Wales 1: aggregates 31 March 2004 Guidance Minerals technical advice note (MTAN) Wales 2: coal 31 January 2009 Guidance
