Map Viewing Service (WMS) of the dataset: Restricted areas of the plan for the prevention of natural hazards of the municipality of SAINT-JEAN-DE-VERGES

The regulated zoning of the Natural Hazard Prevention Plan (PPRN) is digitised in accordance with the national requirements of COVADIS. 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.自然灾害防治计划（Natural Hazard Prevention Plan, PPRN）的合规区划已依据COVADIS的国家规范完成数字化处理。针对自然类PPRN，《环境法典》在条款L562-1中将区划划分为两类：风险暴露区，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。依据灾害等级的不同，每类区域均需遵循可强制执行的管控细则。监管规则通常区分三类区域：1. “建筑禁建区”（又称“红色区域”）：该区域灾害等级较高，通用规则为禁止建设；2. “指定管控区”（又称“蓝色区域”）：该区域灾害等级为中等，建设项目需遵循适配问题类型的相关要求；3. 虽未直接面临风险，但建设工程、开发项目、农场及农业、林业、手工业、商业或工业活动可能加剧既有风险或引发新风险的区域：需遵守禁建或相关管控要求（详见《环境法典》第L562-1条）。该类区划仅适用于自然类RPPs。