Inactivation of ID Numbers Due to Non-Compliance With DTSC’s Hazardous Waste ID Number Verification Questionnaire and Fees Assessment

DTSC’s annual Verification Questionnaire and Fees Assessment for hazardous waste identification (ID) numbers and manifests are required by Health and Safety Code sections 25205.15 and 25205.16. Pursuant to section 25205.16(c), “Any generator, transporter, and facility operator who fails to comply with this section, or who fails to provide information required by the department to verify the accuracy of hazardous waste activity data, shall be subject to suspension of any and all identification numbers assigned to the generator, transporter, or facility operator and to any other authorized enforcement action.”
Hazardous waste handlers that are required to complete the 2020 Verification Questionnaire and haven’t done so by December 31, 2020 by 5:00 PM Pacific Time will have their ID number(s) inactivated on January 4, 2021. The inactive date will be backdated to June 30, 2020. The questionnaire and fees were due 30 days from the date the handler received their first notice in July 2020. Handlers have been sent at least three notices via email or U.S. Postal Service since that time. They have been given ample time (more than 120 days) to complete the questionnaire. Inactivating ID numbers due to non-compliance with Health and Safety Code sections 25205.15 and 25205.16 will also help DTSC clean up data for handlers that are not using their ID number and do not respond to notices.
The annual ID Number Verification Questionnaire history is now available to regulators with a Hazardous Waste Tracking System (HWTS) user account. To view the information, follow the steps below.
1. Log into your HWTS account at
2. Enter the respective ID number or handler name into the search box and click on the magnifying glass icon.
3. Click on “View Profile”.
4. Scroll down the page until you see the heading “Annual ID Number Verifications”.
If a handler still hasn’t completed their Verification Questionnaire, please refer them to the information below.

Training Video:


Phone: 1-877-454-4012 (toll-free) Monday through Friday from 9:00 AM to 4:00 PM Pacific Time.