LOISON-SUB-LENS PPRN GRAPHIC DATA SET

The Risk Prevention Plans (PPR) 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. Their objective is to monitor development in areas exposed to a major risk.The PPRs are approved by the prefects and generally carried out by the departmental directorates of the territories (DDT). These plans regulate land use or land use through construction prohibitions or requirements on existing or future buildings (constructive provisions, vulnerability reduction work, restrictions on use or agricultural practices, etc.).These plans may be under development (prescribed), implemented in advance or approved.The PPR file contains a presentation note, a regulatory zoning plan and a regulation. Other graphic documents that are useful for understanding the approach (e.g. hazards, issues, etc.) can be attached.

风险预防计划（Risk Prevention Plans，以下简称PPR）系依据1995年2月2日《加强环境保护法案》制定，为国家在风险预防领域的核心管控工具。其核心目标为对存在重大风险的区域内的开发活动开展动态监测与监管。
PPR由省长批准，通常由各省领土事务局（Direction départementale des territoires，缩写DDT）负责推进实施。此类计划通过针对既有或拟建建筑设定施工禁令或相关要求（含建设规制、风险脆弱性降低工程、使用限制或农业作业限制等），对土地使用行为予以规范。
此类计划可处于编制阶段（已获立项批复）、先期实施或正式获批三种状态。
PPR档案包含说明性报告、管制分区规划图与管制规程。其他有助于理解该管控方案的图示类文件（如风险危险源分布图、核心问题梳理图等）亦可作为附件附入档案。