Map visualisation service (WMS) of the dataset: Plan for the prevention of natural hazards of landslides — Municipality of Mirabel — Restricted area — Department of Tarn-et-Garonne

For natural PPRs, the environmental code defines two categories of zones (L562-1): risk-exposed areas and areas that are not directly exposed to risks but where measures may be foreseen to avoid exacerbating the risk.
Depending on the hazard level, each area is subject to an enforceable settlement. Regulations generally distinguish three types of zones:
1- ‘building prohibition zones’, known as ‘red zones’, where the hazard level is high and the general rule is the prohibition on building;
2- ‘zones subject to requirements’, known as ‘blue zones’, where the hazard level is average and projects are subject to requirements adapted to the type of issue;
3- areas not directly exposed to risks but where constructions, structures, development or agricultural, forestry, artisanal, commercial or industrial operations could aggravate or cause new risks, subject to prohibitions or requirements (see Article L562-1 of the Environmental Code). The latter category applies only to natural PPRs.