Department of Toxic Substances Control | Department of Toxic Substances Control

2020 Electronic Verification Questionnaire Report Cycle Now Open

The electronic Verification Questionnaire (eVQ) System provides a fast and convenient way for hazardous waste handlers to file
the required annual EPA ID number verification and fees assessment to maintain the active status of their EPA ID numbers.

Access the electronic Verification Questionnaire

COVID-19 Policies

We are working with stakeholders and the communities we serve to practice safe social distancing, while continuing our work to protect Californians and the environment from toxic substances.

Learn more about interim COVID-19 policies

Cleaning Up Neighborhoods Near Exide

DTSC is making progress in the largest residential cleanup of its kind in California

Learn more about the process

DTSC@Work

We are focused on our mission to protect California’s people and the environment from harmful chemicals

Read about DTSC@Work

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Access the Electronic Verification Questionnaire (opens a new window)
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Where can I find ...

Annual Fee Summary
Environmental Justice Information
Facilities with Pending Permit Decisions (opens a new window)
Hazardous Waste Annual/Biennial Reports
List of Permitted Facilities (opens a new window)
Selected Cleanup Sites
Title 22, California Code of Regulations (CCR)
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DTSC’s 2019-2023 Draft Strategic Plan
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Public Notices
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Safer Consumer Priority Products
Upcoming Meetings & Events (opens a new window)

News Releases

California to Spray Foam Insulation Makers: Look Harder for Safer Alternatives

The Department of Toxic Substances Control has issued a Notice of Deficiency to manufacturers of spray polyurethane foam (SPF) insulation systems who claim there is no suitable alternative to a toxic chemical used in their wall and roof insulation products.

DTSC Enforcement Results in Penalties for Lynwood Generator’s Unauthorized Treatment, Storage of Hazardous Waste

A series of inspections conducted by the Department of Toxic Substances Control has resulted in $64,350 in penalties for a Southern California generator of hazardous waste due to multiple violations of California’s hazardous waste laws….

California Issues Legal Order for Cleanup of Santa Susana Toxic Site

California has reached an agreement with the U.S. Department of Energy to remove contaminated buildings at the Santa Susana Field Laboratory, a former nuclear research and rocket engine test facility in Ventura County. This action requires DOE to remove all 10 buildings within the Radioactive Materials Handling Facility Complex.

Go to our Newsroom for all news releases.