Marquenterre Bay of Somme Restricted Area Reference Level Isocontours

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 areas:1- ‘Building prohibited areas’, so-called ‘red areas’, where the hazard level is high and the general rule is the construction ban;2- ‘prescription areas’, known as ‘blue zones’, where the hazard level is medium and 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, crafts, 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.
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 areas:1- ‘Building prohibited areas’, so-called ‘red areas’, where the hazard level is high and the general rule is the construction ban;2- ‘prescription areas’, known as ‘blue zones’, where the hazard level is medium and 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, crafts, 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.

针对自然PPR（Natural PPRs），《环境法典》（L562-1条款）将区域划分为两类：风险暴露区域，以及未直接暴露于风险但可采取预判措施以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种类型：
1. “禁建区域”，又称“红色区域”：该区域危险等级较高，通用规则为禁止建设；
2. “规制区域”，亦称“蓝色区域”：该区域危险等级为中等，相关项目需遵循适配于风险类型的管控要求；
3. 未直接暴露于风险，但建设工程、开发项目或农业、林业、手工业、商业及工业农场等活动可能加剧既有风险或引发新风险的区域，需遵守相关禁令或管控要求（参见《环境法典》L562-1条款）。后一类区域仅适用于自然RPP（Natural RPPs）。
针对自然PPR（Natural PPRs），《环境法典》（L562-1条款）将区域划分为两类：风险暴露区域，以及未直接暴露于风险但可采取预判措施以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种类型：
1. “禁建区域”，又称“红色区域”：该区域危险等级较高，通用规则为禁止建设；
2. “规制区域”，亦称“蓝色区域”：该区域危险等级为中等，相关项目需遵循适配于风险类型的管控要求；
3. 未直接暴露于风险，但建设工程、开发项目或农业、林业、手工业、商业及工业农场等活动可能加剧既有风险或引发新风险的区域，需遵守相关禁令或管控要求（参见《环境法典》L562-1条款）。后一类区域仅适用于自然RPP（Natural RPPs）。