Process Safety Leading Metrics Survey CCPS, “Process Safety Leading Indicators Industry Survey ", 2013
API 754 Resources Page, Fact Sheet, Webinars, Frequently Asked Questions, Guide to PSE Reporting, Excel Spreadsheet, statistics reports (for purchase) Severity Table (for classifying Tier 1 PSEs) available in API Guide to Reporting Process Safety Events, Version 3.0, Appendix D. Chemical Reactivity Worksheet