"Planning Policy Statements (PPSs) set out the Government’s core policies and principles on the most important aspects of land use planning. The policies in this statement and the advice in the accompanying Annexes ... should be taken into account by Regional Planning Bodies (RPBs) and Local Planning Authorities (LPAs) in preparing Regional Spatial Strategies (RSSs) and Local Development Documents (LDDs) – referred to in this Statement as “development plans”." (Quoted from paper)