Map Viewing Service (WMS) of the dataset: TRPP Restricted Areas BRENNTAG

For PPRTs, the environmental code defines a single category of zones for zones (L515-15 et seq.): areas at risk. Unlike natural RPPs, PPRTs never have restricted areas that are not directly exposed to risk.Depending on the hazard level, each TPP area is subject to enforceable regulation. The PPRT regulations generally distinguish between two types of areas:1- “Building prohibited areas”, known as “red zones”, where the hazard level is high and the general rule is the construction ban;2- “prescribed areas”, so-called “blue zones”, where the hazard level is medium and the projects are subject to requirements adapted to the type of issue. The instructions of the PPRT development guide add a gradation within the “red zones” and “blue zones”.

针对技术风险预防规划（PPRT），《环境法典》针对特定区域（L515-15及后续条款）划定了单一类别的风险区域。与自然风险预防规划（RPP）不同，技术风险预防规划（PPRT）不会包含未直接暴露于风险中的受限区域。依据危险等级的不同，每个TPP区域均需遵守强制性监管规定。技术风险预防规划的监管条例通常将区域划分为两类：
1. 建筑禁止区，又称"红区"：此类区域危险等级较高，原则上施行建筑禁令；
2. 指定管控区，即所谓的"蓝区"：此类区域危险等级为中等，相关项目需遵循适配具体风险类型的监管要求。
《PPRT编制指南》中的相关指引还在"红区"与"蓝区"内部增设了分级标准。