Regulated area of the PPRMT of Vouvray and Chateau du Loir in Sarthe.

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PPRs，《环境法典（Environmental Code）》第L562-1条将其划分为两类区域：风险暴露区域，以及虽未直接承受风险但可预先采取措施以规避风险加剧的区域。根据危害等级的差异，每类区域均需遵循可强制执行的管控规范。该法规通常将区域划分为三种类型：1. "禁止建设区"，俗称"红色区域"：此类区域危害等级较高，核心规则为禁止建设；2. "限制建设区"，又称"蓝色区域"：此类区域危害等级为中等，相关建设项目需遵守适配问题类型的具体合规要求；3. 虽未直接暴露于风险之中，但建设工程、开发活动或农林、手工业、商业、工业经营行为可能加剧既有风险或引发新风险的区域，此类区域需遵守禁止性规定或合规要求（详见《环境法典》第L562-1条）。前述第三类区域仅适用于自然RPPs。