PPRMT Montigny-lès-cormeilles (Regulated area)

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 areas:1- ‘Building prohibited areas’, so-called ‘red areas’, where the hazard level is high and the general rule is the construction ban;2- ‘prescription areas’, known as ‘blue zones’, where the hazard level is medium and 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, crafts, 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.

针对自然风险防护计划（natural PPRs），《法国环境法典》第L562-1条划定了两类区域：风险暴露区，以及虽未直接面临风险但需采取管控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建设管控规则。该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，基本原则为全面禁止建设活动；
2. 限制建设区（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专项管控要求；
3. 虽未直接面临风险，但建设工程、开发项目或农业、林业、手工业、商业及工业设施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（参见《法国环境法典》第L562-1条）。
后一类区域仅适用于自然风险防护计划（natural RPPs）。