PPRN — Restricted area of the PSS of the municipality of BENNEY (54062)

Submersible Surface Planes (PSS) are the first mapping documents regulating land cover in flooding areas for federal watercourses. They were created by the Decree-Law of 30 October 1935 and its implementing decree of 20 October 1937. The Barnier Law of 2 February 1995 gives PSS a risk prevention plan (PPR) status, making them enforceable against third parties. The PSS is a document that establishes a utility easement affecting land use. It allows the administration to oppose any action or work likely to impede the free flow of water or the conservation of flood fields (Article R425-21 of the Urban Code). The filing of a declaration before carrying out works likely to affect the natural flow of water (digues, embankments, depots, fences, plantations, constructions) is therefore necessary. Although having the same legal value, PSS and PPR are technically different. SSPs “merely” map a flood hazard in contrast to PPRs that represent a risk taking into account the vulnerability of the territories (regulatory zoning plan). Finally, the PSS mapped a so-called “average” flood less than the reference flood used as the basis for the development of PPRs (the highest known flood corresponding to the highest known waters (PHEC) and, in the event that it was lower than a centennial flood, the latter). Pursuant to Article L562-6 of the Code de l’Environnement, the PSS are to be PPR pending their repeal by a PPR on the municipalities concerned. 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.淹没地表平面图（Submersible Surface Planes，PSS）是首个针对联邦水道洪水区域土地覆盖进行监管的测绘文件。该文件由1935年10月30日的法令及1937年10月20日的实施政令制定。 1995年2月2日的巴尼耶法赋予PSS风险预防计划（Risk Prevention Plan，PPR）地位，使其可对第三方强制执行。PSS是一份设定地役权以规范土地使用的文件，允许行政部门反对任何可能阻碍水流自由通行或破坏洪泛区的行为或工程（《城市法典》第R425-21条）。因此，在开展可能影响自然水流的工程（包括堤坝、路堤、堆场、围栏、种植园、建筑工程等）前，必须进行申报。 尽管PSS与PPR具有同等法律效力，但二者在技术层面存在差异。PSS仅对洪水风险进行测绘，而PPR则是结合区域脆弱性评估风险的管制分区规划（regulatory zoning plan）。此外，PSS所划定的所谓“中等”洪水，其规模小于作为PPR制定基础的基准洪水——基准洪水指已知最高水位（PHEC），若该水位低于百年一遇洪水，则以百年一遇洪水为准。 根据《环境法典》第L562-6条规定，在相关市镇的PPR文件废止该PSS之前，PSS应视同PPR执行。 针对自然PPR，《环境法典》将区域划分为两类（第L562-1条）：风险暴露区，以及非直接暴露于风险但可采取措施避免风险加剧的区域。 根据风险等级，每个区域需遵守可强制执行的规制要求。相关规定通常区分三类区域： 1. “禁止建设区”，又称“红色区域”：风险等级较高，一般规则为禁止建设； 2. “管制区”，又称“蓝色区域”：风险等级中等，项目需符合适配特定问题的相关要求； 3. 非直接暴露于风险，但建设、工程、开发活动或农业、林业、手工业、商业、工业经营可能加剧风险或引发新风险的区域：需遵守禁令或相关要求（参见《环境法典》第L562-1条）。该第三类区域仅适用于自然PPR。