While efforts by federal agencies, including the U.S. Environmental Protection Agency ("EPA") and Occupational Safety and Health Administration ("OSHA"), to update process safety regulations have slowed during the transition to a new administration, California’s promulgation of new refinery process safety standards continues to progress. The California Department of Industrial Relations ("DIR") and the Office of Emergency Services ("CalOES") have each solicited public comments on additional modifications to the proposed Refinery Process Safety Management ("PSM") standard and the Accidental Release Prevention ("CalARP") program. The latest revisions published by the agencies, which modify regulations formally proposed in July 2016, are subject to a 15-day public comment period. During a seminar hosted by Katten’s Workplace Safety Group, Clyde Trombettas, Statewide Manager and Policy Advisor for the DIR Department of Occupational Safety and Health ("Cal/OSHA") PSM Unit, indicated that this will likely be the last public comment period, assuming the agency receives limited comments. He anticipated that final rules would be issued in summer 2017....