Sarthe Amont Valley FNIPP Restricted 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.针对自然风险防护区（PPRs），《环境法典》第L562-1条划定了两类区域：风险暴露区域，以及虽未直接面临风险但可采取措施避免风险加剧的区域。依据危险等级的不同，每类区域均需遵循可强制执行的管控规则。法规通常将区域划分为三类：1. 禁止建设区（俗称“红区”）：该区域危险等级较高，基本原则为禁止一切建设活动；2. 合规管控区（又称“蓝区”）：该区域危险等级为中等，建设项目需符合针对具体风险类型制定的适配性管控要求；3. 非直接风险暴露区：该区域虽未直接面临风险，但各类建设工程、开发活动或农林牧渔、手工业、商业及工业业态可能加剧既有风险或引发新风险，需遵守相关禁令或管控要求（参见《环境法典》第L562-1条）。上述第三类区域仅适用于自然RPPs。