Simple download service (Atom) of the dataset: Restricted areas of the PPRi de la Loire, val de Briare

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 can be foreseen to avoid exacerbating the risk.

Depending on the hazard level, each area is subject to an enforceable settlement. The regulations generally distinguish three types of zones:
1- ‘Building prohibited areas’, known as ‘red areas’, where the hazard level is high and the general rule is the prohibition on construction;
2- ‘prescribed areas’, known as ‘blue zones’, where the hazard level is average and the projects are subject to requirements adapted to the type of issue;
3- areas not directly exposed to risks but where constructions, works, developments or farms, agricultural, forestry, craft, commercial or industrial could aggravate risks or cause new ones, subject to prohibitions or requirements (cf. Article L562-1 of the Environmental Code). The latter category applies only to natural RPPs.

针对自然PPR（Natural PPRs），《环境法典》第L562-1条将其划分为两类区域：风险暴露区域，以及虽未直接面临风险但可采取措施规避风险加剧的区域。

依据危险等级差异，每类区域均需遵循可强制执行的管控要求。相关法规通常将区域划分为三类：
1. 建筑禁建区（又称"红色区域"）：该区域危险等级较高，通用规则为禁止任何建筑活动；
2. 特定管控区（又称"蓝色区域"）：该区域危险等级为中等，相关工程建设需符合适配具体问题类型的管控要求；
3. 第三类区域虽未直接面临风险，但任何建筑、工程、开发项目或农、林、手工业、商业及工业类经营场所均可能加剧既有风险或引发新风险，因此需遵循相应禁建要求或管控规范（参见《环境法典》第L562-1条）。该类区域仅适用于自然RPP（Natural RPPs）。