The Regional Technical Statement (RTS) is a requirement of the Minerals Aggregates Technical Advice Note (MTAN1) which was issued by the Welsh Assembly Government in March 2004. MTAN1 sets an overarching objective which seeks to ensure a sustainably managed supply of aggregates (which are essential for construction), striking the best between environmental, economic and social costs. The RTS provides a strategic basis for Local Development Plans. As a local mineral authority, the Brecon Beacons National Park Authority is represented on this body.