This dataset contains the boundaries at the different stages of the PPRN; development of the PPRN. The characteristic of these perimeters is to be the consequence of an official act and to produce their effects from a defined date. It is:
— prescribed perimeter set out in the prescribing order of n°#x27; a PPR (natural or technological);
— perimeter d' exposure to risks that corresponds to the perimeter regulated by the approved PPR. This approved perimeter is a public utility easement (PM1 for PPRNs and PM3 for PPRTs);
— perimeter d' study corresponding to #x27; envelope in which hazards have been studied.
__Origin__
The perimeter of a prescribed PPR is usually provided in the prefect’s prescription order. The perimeter d' exposure to risks — or regulated perimeter — corresponds to the \#x27; geometric aggregation of l' all the restricted zones listed in the same PPR. The perimeter of the study corresponds to the envelope in which the hazards were studied.
__Partner organisations__
DDT Haute-Savoie
__Links annexes__
* [XML metadata view](http://ogc.geo-ide.developpement-durable.gouv.fr/csw/all-dataset?REQUEST=GetRecordById&SERVICE=CSW&VERSION=2.0.2&RESULTTYPE=results&elementSetName=full&TYPENAMES=gmd:MD_Metadata&OUTPUTSCHEMA=http://www.isotc211.org/2005/gmd&ID=fr-120066022-jdd-180e2e45-9f89-49fe-b8c8-ea993bf3bbbe)
* [COVADIS data standard: Scope of PPRN](http://geostandards.developpement-durable.gouv.fr/afficherPageStandard.do?jeu=N_PERIMETRE_PPRN_AAAANNNN_S)
[See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/983be191381ac833e6193f61d2d6a47bbcfa34c7)
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