Map Viewing Service (WMS) of the dataset: Regulated zone of the PPRN flooding by overflow of the Charente River of the commune of Champdolent en Charente-Maritime

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.

针对自然风险防范计划区域（natural PPRs），《环境法典》第L562-1条将区域划分为两类：风险暴露区，以及虽未直接暴露于风险但可通过采取相关措施避免风险加剧的区域。
依据危险等级的不同，每类区域均需遵守可强制执行的管控规则。法规通常将区域划分为三种类型：
1. ‘禁止建设区’，又称‘红色区域’：该区域危险等级较高，原则上禁止任何建设活动；
2. ‘指定管控区’，又称‘蓝色区域’：该区域危险等级中等，相关建设项目需适配风险类型落实对应管控要求；
3. 虽未直接暴露于风险，但因建设工程、构筑物、开发项目或农场，以及农业、林业、手工业、商业及工业经营活动可能加剧既有风险或引发新风险的区域，需遵守相关禁止性规定或管控要求（详见《环境法典》第L562-1条）。该类区域仅适用于自然RPPs（natural RPPs）。