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Process Safety Management (PSM) Unit

The Process Safety Management (PSM) Unit is responsible for inspecting refineries and chemical plants, covered under Labor Code sections 7850-7873, that handle large quantities of toxic and flammable materials. Health and safety standards enforced by the PSM Unit, including adequate employee training, are intended to prevent catastrophic explosions, fires, and releases of dangerous chemicals.

Petroleum refinery employers must submit to the PSM Unit every September 15 a full schedule of planned turnarounds for all affected units for the following calendar year (Labor Code sections 7872-7873, effective 1/1/15). A "turnaround" is a planned, periodic shutdown, total or partial, of a refinery process unit or plant to perform maintenance, overhaul, and repair operations and to inspect, test, and replace process materials and equipment. After receiving and reviewing an employer's schedule of turnarounds, the PSM Unit may request that the employer provide onsite access and allow inspectors to review additional documentation related to the turnaround.

View the Status Report on Process Safety Management Regulatory Oversight, April 2015

Contact the PSM Unit to:

  • File a complaint,
  • Report an accident,  or
  • Submit required turnaround information:

Process Safety Management Unit

Clyde Trombettas, Statewide Manager and Policy Advisor
1450 Civic Court, Suite 550
Concord, CA 94520

Phone:(925) 602-2665
Fax:(925) 602-2668

To report a work-related injury, illness, or fatality,
if you cannot call, you may use email:

For other matters, use

Process Safety Management - North

Clyde Trombettas, Statewide Manager and Policy Advisor
1450 Civic Court, Ste. 550
Concord, CA 94520

phone:(925) 602-2665
fax:(925) 602-2668

Process Safety Management - South

Mary Ann Efron, District Manager
2000 E. McFadden Ave. Ste. 208
Santa Ana, CA 92705

phone:(714) 558-4600
fax:(714) 558-4614

Visit the Governor's Interagency Refinery Task Force web page to learn about an important effort by the Department of Industrial Relations (DIR) to advance the safety, health and environmental performance of the state's refinery sector.

Apr. 6, 2015 DIR Releases Status Report on Process Safety Management Oversight of California's Petroleum Refineries

February 2016