PPRN — RPP Regulated Area Moselle Medium Flood — FLAVIGNY-SUR-MOSELLE (54196)

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.

对于自然风险预防规划（PPR），《环境法典》（L562-1条款）将区域划分为两类：风险暴露区，以及虽未直接面临风险但可采取相关措施以避免风险加剧的区域。

根据危险等级的不同，每类区域均需遵守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. 禁止建设区（又称"红色区域"）：此类区域危险等级较高，基本原则为禁止任何建设行为；
2. 指定建设区（又称"蓝色区域"）：此类区域危险等级为中等，建设项目需遵守适配风险类型的相关管控要求；
3. 虽未直接面临风险，但任何建设工程、开发活动或农业、林业、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的区域，需遵守相关禁止性规定或管控要求（详见《环境法典》L562-1条款）。

此类区域仅适用于自然风险预防规划（RPP）。