Map Viewing Service (WMS) of the dataset: Regulated areas of the plan for the prevention of natural hazards of the municipality of Vernajoul

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.自然灾害防治规划（Natural Hazard Prevention Plan，缩写PPRN）的法定区划已按照COVADIS的国家规范要求完成数字化处理。针对自然类灾害防治规划，《环境法典》（Environmental Code）将区划划分为两类（条款编号L562-1）：直接受风险影响区域，以及虽未直接暴露于风险但可采取防控措施避免风险加剧的区域。依据灾害风险等级，每类区划均需执行可强制执行的管控细则。相关法规通常将区划划分为三类：1. 建筑禁建区（又称"红色区域"）：该区域风险等级较高，通用管控规则为禁止任何建设行为；2. 合规管控区（又称"蓝色区域"）：该区域风险等级中等，建设项目需遵循适配具体问题类型的管控要求；3. 间接风险关联区域：该区域虽未直接暴露于风险，但各类建设、工程、开发活动或农业、林业、手工业、商业及工业类经营场所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》条款L562-1）。该类区划仅适用于自然类灾害防治规划。