Map visualisation service (WMS) of the dataset: PPRN document on the Haute-Savoie department

The Risk Prevention Plans (RPPs) were established by the Law of 2 February 1995 on the strengthening of environmental protection. They are the essential tool of the State in the field of risk prevention. Their objective is to control the development in areas exposed to a major risk.The PPRs are approved by the prefects and generally carried out by the departmental directorates of the territories (DDT). These plans regulate land use or its use through construction bans or requirements on existing or future buildings (constructive provisions, vulnerability reduction work, restrictions on use or agricultural practices...). These plans may be under development (prescribed), applied in advance or approved.The PPR file contains a presentation note, a regulatory zoning plan and a regulation. Other graphical documents that are useful for understanding the approach (alases, challenges, etc.) can be attached. Each PPR is identified by a polygon that corresponds to the set of municipalities concerned in the limitation perimeter when it is in the prescribed state; and the envelope of restricted zones when it is in the approved state. Each existing PPRN document in the geographic table N_DOCUMENT_PPRN is linked using its GASPAR code in the format “ddd[PREF|DDT|DDTM|DREAL]aaaanannnn” (AAAA and NNNN correspond to the reference year and order number of the associated PPR procedure in GASPAR): its administrative procedure for drafting (or revising) managed in the GASPAR application, on the one hand, 2. its series of numerical constituent geographical data described by the metadata sheet N_PPRN_AAAANNNN (#0001495) on the other hand.