Map Viewing Service (WMS) of the dataset: Restricted areas of the Tercis-les-Bains Natural Risk Prevention Plan (PPRN) — Landes (40)

For Natural Risk Prevention Plans (NPPs), 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.

自然风险预防计划（Natural Risk Prevention Plans, NPPs）相关的《环境法典》在条款L562-1中划定了两类区域：风险暴露区域，以及虽未直接面临风险但可预先采取措施避免风险加剧的区域。依据危险等级的不同，每类区域均需遵循可强制执行的管控要求。
相关法规通常将区域划分为三类：
1. 禁止建设区（红色区域）：该区域危险等级较高，原则上禁止开展任何建设活动；
2. 规定建设区（蓝色区域）：该区域危险等级中等，建设项目需遵循适配具体问题类型的相关管控要求；
3. 间接风险区域：该区域虽未直接面临风险，但农业、林业、手工业、商业或工业类的建设工程、开发项目、农场或经营活动可能加剧既有风险或引发新的风险，因此需遵守禁止性规定或相关管控要求（详见《环境法典》第L562-1条）。该类区域仅适用于自然风险预防计划。