Regulatory Areas of the Natural Risk Prevention Plan (PPRN) of the Meu, Garun, and Vaunoise Basin — Ille et Vilaine (35)

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.针对天然PPR，《环境法典》（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可预先采取措施以规避风险加剧的区域。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以下三类： 1. "禁止建设区"，亦称"红色区域"：该区域危险等级较高，核心原则为禁止开展任何建设活动； 2. "限制建设区"，又称"蓝色区域"：该区域危险等级为中等，建设项目需遵循适配问题类型的管控要求； 3. "非直接风险暴露区"：此类区域虽未直接面临风险，但各类建设工程、开发活动或农业、林业、手工业、商业及工业经营场所可能会加剧既有风险或引发新的风险，因此需遵守相关禁令或管控要求（参见《环境法典》L562-1条）。 该第三类区域仅适用于天然RPP。