Facilities that handle hazardous materials above threshold quantities are required to assess the impacts due to postulated accidents involving releases of these materials, and to ensure that people are adequately protected from the associated fire, explosion, and toxic hazards. An analysis of these hazards can be based solely on consequences from maximum credible events or can incorporate the likelihood of the events to characterize results in terms of risk. The methods of performing these analyses may vary, but, regardless of the specific techniques used, fundamental principles of thoroughness and defensibility should be achieved. This study describes best practices and basic requirements for consequence‐based and risk‐based facility siting studies (FSSs), also commonly referred to as quantitative risk analyses, consistent with industry guidance. The fundamental objective of a consequence‐based or risk‐based FSS is to ensure that the consequences or risks posed by facility operations are minimized to the extent practical.

中文翻译：

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设施选址研究的实践现状

需要处理危险物质的数量超过阈值的设施，以评估由于假想事故引起的涉及这些物质释放的影响，并确保人们得到充分保护，免受相关的火灾，爆炸和有毒危害。对这些危害的分析可以仅基于最大可信事件的后果，也可以结合事件的可能性以根据风险来表征结果。进行这些分析的方法可能有所不同，但是，无论使用何种特定技术，都应实现透彻性和防御性的基本原则。这项研究描述了基于结果和基于风险的设施选址研究（FSS）的最佳实践和基本要求，也被称为定量风险分析，与行业指南相一致。