Deadline October 31st! Don’t let your EPA ID number expire!

Inactivation of ID Numbers Due to Non-Completion of DTSC’s 2021 Hazardous Waste ID Number Verification Questionnaire and Fees Assessment.

Hazardous waste handlers that are required to complete the 2021 Verification Questionnaire and Fees Assessment for hazardous waste identification (ID) numbers and manifests and fail to do so by October 31st by 5:00 PM will have their ID number(s) inactivated on November 1st. The inactive date will be backdated to June 30, 2021. The questionnaire and applicable fees were due 30 days from the date the handler received their first notice in July 2021. Handlers will have been sent three notices via email or U.S. Postal Service and will have been given more than 90 days to complete the questionnaire by October 31st. Inactivating ID numbers due to non-compliance with Health and Safety Code sections 25205.16 helps DTSC clean up data for handlers that are not using their ID number(s) and do not respond to notices.

The eVQ System will still be opened to accept late submissions. If a handler has not completed their 2021 Verification Questionnaire, refer them to the information below. Inactive ID numbers can be reactivated in step 3 of the questionnaire. Any fees owed must be paid, then posted by DTSC’s Accounting Unit before the ID number will be reactivated.

 Website:
 Training Video:
 Email:
 Phone: 1-877-454-4012 (toll-free) Monday through Friday from 9:00 AM to 4:00 PM Pacific Time.
Verification Questionnaire History Available on HWTS
The Annual ID Number Verification Questionnaire history is 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 you are a regulator and do not have a HWTS account, submit the HWTS Account Request Form or contact
  5. As always, if you have any questions on this or any other regulatory issue, please contact us or email

INGENIUM HAZARD HEROES. You don’t need superpowers to do super stuff.

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