REMINDER: It’s time for California Hazardous Waste Generators to complete their mandatory “Electronic Verification Questionnaire” (eVQ)!

The 2023 electronic Verification Questionnaire (eVQ) System will be available soon (anticipated start date is July 5, 2023)! The eVQ verifies that the information on record for your EPA ID number is correct and is used to collect state-mandated fees, based on the number of hazardous waste manifests that were generated over the past year and how those waste streams were managed. The annual Verification Questionnaire is required by the California Health and Safety Code sections 25205.15 and 25205.16.

California hazardous waste handlers/generators that meet any of the following conditions are required to file the 2022 Verification Questionnaire:

  • You or your company had/have an EPA ID number with an active status at any time during the previous fiscal year from July 1,
  • You or your company shipped hazardous waste using an assigned EPA ID number during the 2022 calendar year.

Temporary ID Numbers—If you or your company had a temporary ID number, you may be exempt from filing the 2023 Verification Questionnaire if you or your company meet certain conditions. There is an exemption process required by the DTSC.

Please note that other states may have similar programs or other rules for keeping EPA ID Numbers active. This guidance is CA-specific.


  • If you do not complete the 2023 report cycle by their deadline, DTSC will deactivate your ID number. Typically, the annual report cycle opens in the month of July. The questionnaire is due 30 days from when the generator receives the first notification.

See the DTSC’s website for more information: 

Need help? Have questions? ACTenviro’s EHS Consulting Services Team is at the ready! Contact your ACTenviro Account Manager OR our EHS Consulting Services Team (  if you would like us to assist or complete your eVQ!

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