Hazardous waste Regulatory Assistance Office
Department of Toxic Substances Control
Last updated 06/29/2026
Description
The Regulatory Assistance Office provides informal guidance regarding the management of hazardous waste, including compliance assistance, information, and research services. This is available to the generators, transporters, and facilities managing hazardous waste, as well as other government entities and the general public. If you can’t find answers to your questions, please contact us for assistance.
Phone: 800-728-6942
Related services
Annual hazardous waste verification (eVQ) Hazardous Waste Tracking System
Topics
Assistance and social programs, Businesses, Safety and emergencies, State info and laws
Keywords
DTSC laws, DTSC regulations, hazardous waste facilities, hazardous waste generators, hazardous waste transporters, laws, managing hazardous waste, regulations, guidance