"FYI – There has been a recent update to one of the three Process Safety Management (PSM) memos released last year. There is a link to the revised 18 JUL 2016 PSM memo “Process Safety Management of Highly Hazardous Chemicals and Covered Concentrations of Listed Appendix A Chemicals."
If your operations involve highly hazardous chemicals, you’ll want to review this revised memo to ensure compliance with 29 CFR 1910.119."
(This is shared from an email sent to the Region 2 VPP Sites from Richard F. Brown, CSP, CFPS, VPP Manager, US DOL OSHA)