Map visualisation service (WMS) of the dataset: Plan for the prevention of natural hazards of landslides — Commune de Puycornet — 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.

针对自然风险防治规划（natural PPRs），《环境法典》（Environmental Code）第L562-1条将其区划分为两类：风险暴露区域，以及虽未直接面临风险但需采取措施以避免风险加剧的区域。
依据危险等级差异，每类区域均需遵循可强制执行的管控规则。
相关法规通常将区划分为三类：
1. "建筑禁止区"（又称"红色区域"）：该区域危险等级较高，基本原则为禁止开展建筑活动；
2. "约束管控区域"（又称"蓝色区域"）：该区域危险等级为中等，相关工程建设项目需遵循适配问题类型的管控要求；
3. 虽未直接面临风险，但建筑、构筑物开发或农业、林业、手工业、商业及工业经营活动可能加剧风险或引发新风险的区域，该类区域需遵守相关禁止或管控要求（详见《环境法典》第L562-1条）。此类区划仅适用于自然风险防治规划（natural PPRs）。