This dataset contains the delimitation perimeters according to the stage of the PPRN; development of the PPRN.
The characteristic of a perimeter is to be the consequence of an official act and to produce its effects from a defined date. It can be:
— 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 Ariège
__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-f900b3de-1a99-4af8-9c85-c2e931073295)
* [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/a5c2babc2f0046598351212649c64c89eafb117a)
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