“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:

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




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


This Department’s Division has fee increases for the first time in six fiscal years to cover full operational costs of its regulatory activities effective fiscal year 2016-17. These fee increases apply to all unified programs such as Aboveground Petroleum Storage Tanks, Hazardous Waste Generator/Tiered Permitting, Hazardous Materials Handler and California Accidental Release Prevention Program.  The permit fees are necessary to support the inspection program and fund the compliance, emergency services, outreach, investigations, site remediation, training and community activities performed by HHMD all year long. The fee increases will be effective for all the program elements in this Department’s jurisdiction as well as specific programs in LA City, Santa Monica, and La Habra in Orange County.
With the increasing demand for more regulatory oversights of business facilities that pose a high risk of hazards to the community like the Exide Battery case in City of Vernon, Exxon Mobil Refinery in Torrance and the Southern California Gas in Porter Ranch, personnel and resources justify the necessary funding to protect public health, safety and the environment. HHMD is dedicated to carry out its State mandate and obligations to our regulated business community and to the people of Los Angeles County.
(Click here to see new fee schedule)


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