Regulated areas of the plan for the prevention of natural hazards of the municipality of Dreuilhe

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）的合规区划已按照COVADIS的国家要求完成数字化处理。针对自然类PPRN，《环境法典》第L562-1条将区划划分为两类：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。根据灾害等级的不同，每一类区划均需遵循可强制执行的管控规则。相关管控规则通常将区划分为三类：1. "禁止建设区"（又称"红色区域"）：该区域灾害等级较高，通用管控要求为禁止一切建设活动；2. "管控建设区"（又称"蓝色区域"）：该区域灾害等级中等，相关建设项目需遵循适配风险类型的管控要求；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的风险，需遵循相应的禁止性规定或管控要求（详见《环境法典》第L562-1条）。该类区划仅适用于自然类RPP。