Minerals Technical Advice Note 1: Aggregates (MTAN 1) was produced in 2009 and provides the detailed advice from the Welsh Government in relation to aggregates extraction in Wales.

The document sets out a number of criteria and planning conditions that can be used to control noise and vibration from aggregates extraction, including;

Providing mineral resources to meet society's needs

• Current Aggregates production;
• Future demand;
• Future supply;
• Protecting areas of importance;
• Reducing the impact of aggregates production;
• Restoration and aftercare;
• Efficiency of use/recycling;
• Annexes on Regional Aggregates Working Parties (RAWPs), Reclamation to Agriculture, Soil, Planting and seeding.