Regulated zone of the plan for the prevention of natural hazards of Veyrier-du-Lac (Haute-Savoie) — approved on 25/08/2010

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.针对自然风险预防规划（Natural PPR），《环境法典》（L562-1条款）划定了两类区域：受风险直接影响的区域，以及虽未直接暴露于风险但可通过预先采取措施避免风险加剧的区域。 依据危险等级，每类区域均需遵循可强制执行的管控细则。相关法规通常将区域划分为三类： 1- "建筑禁建区"，又称"红色区域"：该区域危险等级较高，通用规则为禁止建设活动； 2- "特定管控区"，又称"蓝色区域"：该区域危险等级为中等，相关工程建设需遵循适配风险类型的管控要求； 3- 未直接暴露于风险的区域：若该区域内的建设工程、施工项目、开发活动或农场，以及农业、林业、手工业、商业及工业活动可能加剧既有风险或引发新风险，则需遵守相关禁令或管控要求（详见《环境法典》L562-1条款）。 该第三类区域仅适用于自然RPP（Natural RPP）。