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

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）的合规区划已依据COVADIS的国家级规范要求完成数字化处理。针对自然风险防治规划（PPRs），《环境法典（Environmental Code）》在条款L562-1中划定了两类基础区划：一是风险暴露区，二是虽未直接面临风险，但可通过预先采取措施规避风险加剧的区域。依据风险等级差异，每类区划均需遵循可强制执行的管控规则。相关规范通常将区划划分为以下三类：1. 禁建区（俗称"红区"）：此类区域风险等级较高，通用管控规则为禁止一切建设活动；2. 规定建设区（俗称"蓝区"）：此类区域风险等级为中等，相关项目需遵循适配问题类型的专项管控要求；3. 虽未直接面临风险，但建设、工程、开发活动，以及农场、农业、林业、手工业、商业或工业领域的经营活动可能加剧既有风险或引发新风险的区域，需遵循相应禁令或管控要求（详见《环境法典（Environmental Code）》条款L562-1）。此类区划仅适用于自然风险防治规划（RPPs）。