Map Viewing Service (WMS) of the dataset: PPR USTARITZ (64DDTM20160012) — Linear information area of a Ustaritz Flood Prevention Plan (64547), Pyrenees-Atlantiques department

Plans for the prevention of natural hazards (PPRN) were established by the Act of 2 February 1995 on strengthening the protection of the environment. They are the key instrument of the State in the field of risk prevention. The objective of this procedure is to monitor development in areas exposed to a major risk. The PPRNs are decided by the prefects and usually carried out by the departmental directorates of the territories (DDT). These plans regulate land use or use through prohibitions on construction or requirements on existing or future buildings (constructive provisions, vulnerability reduction work, restrictions on agricultural use or practices, etc.). These plans may be under development (prescribed), implemented in advance or approved. The expert information helps to shed light on the expertise conducted within the framework of the PPRN by specifying particular points (fracturing zone, obstacle like a bridge,...) or by adding useful information to the general understanding of the PPRN (e.g. flood markers, flow direction, flow velocity, etc.)1995年2月2日《加强环境保护法》确立了自然灾害防治计划（Plans for the prevention of natural hazards，简称PPRN）。该计划是国家在风险防治领域的核心工具。本流程的目标是对面临重大风险区域的开发活动进行监测。 PPRN由省长（prefects）作出决定，通常由地区领土主管局（departmental directorates of the territories，简称DDT）负责执行。此类计划通过禁止建设或对现有、新建建筑提出要求（包括建设条款、减灾工程、农业使用或耕作限制等），对土地使用行为进行规范。 此类计划可处于编制（法定规定）阶段、提前实施阶段或获批状态。 专家信息可通过明确特定要点（如断裂带、桥梁等障碍物），或补充有助于全面理解PPRN的实用信息（如洪水标记、水流方向、流速等），阐明PPRN框架内开展的专业工作。