Documents that set out the government's views and instructions on the way that each local planning authority in England should implement its responsibilities and duties in respect of town and country planning (spatial planning). Two such documents deal with archaeological matters: PPG15 issued in September 1994, entitled Planning and the historic environment, and PPG16 issued in November 1990, entitled Archaeology and planning. Both documents emphasize the interest and importance of various components of the historic environment and use the dual strands of the planning system to provide for the protection, conservation, and management of important sites, structures, and deposits and their setting. The role of strategic planning in balancing the needs of local communities and the preservation of archaeological remains is recognized, and the guidance recommends strong policies for protecting important sites. These policies will underpin what can be achieved through development control, where the possible impact of individual proposals on archaeological materials is considered. Here the guidance provides an approach to the proper consideration of archaeological issues in which the prospective developer submits to the local authority the results of specialist studies (desk‐based assessment and/or field evaluation or environmental impact assessment). The guidance places a responsibility on the local authority to have due regard to the preservation of archaeological deposits which are considered to be of national importance by making it a ‘material consideration’. If planning permission for a development is granted, the authority may, if it wishes, impose an archaeological condition (a specimen is given in PPG16) whereby the developer must undertake an agreed programme of archaeological works (known as a mitigation strategy) at their own cost. Similar intentions are set out in planning guidance notes issued for Wales and Scotland.
http://www.communities.gov.uk/planningandbuilding/planning/planningpolicyguidance/planningpolicystatements/planningpolicyguidance/ Texts of all issued Planning Policy Guidance for England, including PPG15 on Planning and the Historic Environment and PPG16 on Archaeology and Planning.