With the development of increasingly complex processes and technologies in chemical and manufacturing industries, Process Safety Management (PSM) has been globally recognized as the primary tool for operating companies to reduce process accidents on their industrial sites and the risks posed to their employees and surrounding communities. Yet, industrial facilities are often interdependent and collocated with others. Recognizing this, regional authorities are also applying PSM principles to reduce the cumulative incidents associated with high density industrial areas and the multiplicative risks posed to broader communities. This paper compares Strathcona County Emergency Service (SCES) in Alberta, Contra Costa County Health Service Hazard Material Programs (CCCHSHMP) in California, and Technical Standards & Safety Authority (TSSA) in Ontario and their PSM systems to provide practical recommendations to improve SCES's system. Four aspects of PSM are considered: regulation and guidance, auditing and inspection, annual performance indicators, and public participation. Based on the results of this comparison, we recommend that SCES develop comprehensive PSM regulations based on CSA Z767-17 PSM including clear instructions for assessing technologies and methodologies for consequence analysis. Both worst-case scenarios and alternative scenarios need to be considered as well as the domino effect of primary accidents. Furthermore, regular audits and inspections will ensure compliance with PSM regulations while helping the design of planning, performing, and following-up strategies to ensure effectiveness. In addition, we suggest the use of lagging and leading performance indicators to evaluate the performance of the PSM program. Finally, we recommend using advisory councils or commissions to increase public participation and ensure the representation of stakeholders' perspectives with the PSM system.

随着化学和制造业行业中日益复杂的过程和技术的发展，过程安全管理（PSM）已被全球公认为运营公司减少其工业现场过程事故以及对员工和周围社区造成的风险的主要工具。然而，工业设施通常是相互依存的，并且与其他设施并置。认识到这一点，区域当局也正在应用PSM原则，以减少与高密度工业区相关的累积事件以及对更广泛社区造成的倍增风险。本文比较了艾伯塔省的Strathcona县紧急服务（SCES），加利福尼亚州的Contra Costa县卫生服务危害物质计划（CCCHSHMP）以及技术标准和 安大略省安全局（TSSA）及其PSM系统提供了实用建议，以改善SCES系统。PSM的四个方面被考虑：法规和指导，审计和检查，年度绩效指标以及公众参与。根据比较结果，我们建议SCES根据CSA Z767-17 PSM制定全面的PSM法规，其中包括评估后果分析技术和方法的明确说明。需要同时考虑最坏情况和替代情况，以及主要事故的多米诺效应。此外，定期审核和检查将确保符合PSM法规，同时帮助设计规划，执行和后续策略以确保有效性。此外，我们建议使用落后和领先的绩效指标来评估PSM计划的绩效。最后，我们建议使用咨询委员会或委员会来提高公众参与度，并确保PSM系统代表利益相关者的观点。