“Our mission is to protect the public health and the environment throughout Los Angeles County from accidental releases and improper handling, storage, transportation, and disposal of hazardous materials and wastes through coordinated efforts of inspections, emergency response, enforcement, and site mitigation oversight. ”
Bill Jones, Division Chief


During the 1970s and early 1980s, the occurrence of major hazardous materials incidents nationally and in Los Angeles County focused public attention on the need for safe handling, storage, transportation, and disposal of hazardous materials and wastes. In 1982, the Los Angeles County Board of Supervisors established the Hazardous Materials Control Program in the Department of Health Services for the inspection of businesses generating hazardous waste. In 1991, the program merged into the Fire Department and it became the Health Hazardous Materials Division (HHMD). All Hazardous Material Specialists are sworn and badged Los Angeles County Deputy Health Officers.

In 1997, HHMD became a Certified Unified Program Agency (CUPA) to administer the following programs within Los Angeles County: the Hazardous Waste Generator Program, the Hazardous Materials Release Response Plans and Inventory Program, the California Accidental Release Prevention Program (Cal-ARP), the Aboveground Storage Tank Program and the Underground Storage Tank Program.
HHMD is a division of the Department’s Prevention Services Bureau, and includes the following sections and units:




In February of 2014, the Health Hazardous Materials Division (HHMD) received a prestigious award from the Secretary of California Environmental Protection Agency (Cal EPA). The Secretary’s Environmental Achievement Award, for the first time, was given to an organization instead of an individual. The HHMD, in recognition for its leadership in a number of different areas, received this award for being at the forefront of new and innovative ways of doing business; participating in task forces and committees that engaged local government with State and federal stakeholders; and by being well ahead of the rest of the State in their unique standing as the largest Certified Unified Program Agency.
hhmd award


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You can now pay your CUPA fees online.  Please visit our Payment Options page to access the Online Payment Portal


The southeast district inspection office has been temporarily relocated to the Health Hazardous Materials Division Headquarters located at 5825 Rickenbacker Road, Commerce, 90040.

CERS submittal is due on March 15, 2019

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The 21st Annual California Unified Program Training Conference is offering a Free Hazardous Waste Training for businesses that generate hazardous waste

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