Procuring and processing Planning Analytical Materials of the Region and Municipality (hereafter UAP), Development Principles of the City of Prague (ZUR) and the Land Use Plan of the City of Prague (ÚPn) act in accordance with Act No. 183/2006 Coll. from 14 March, 2006, on Town and Country Planning and Building Regulations (the Building Act) and Decree No. 500/2006 Coll. on planning analytical materials, urban planning documentation and the method of recording urban planning activity, which modify in more detail requirements of the content of planning analytical materials, content of urban planning documentation (such as ZUR and ÚPn), including requirements for documents related to acquiring and assessing the effects on the sustainable development of the territory and the maintenance of urban planning documentation, and materials for recording urban planning activity.