Onsite Treatment of Hazardous Waste - Tiered Permit Progra

Treatment of Hazardous Wastes

Hazardous waste treatment is any method, technique, or process designed to change the physical, chemical, or biological composition of any hazardous waste or reduces its harmful characteristics and may reduce the volume of the hazardous waste. Examples of treatment include the following processes:

  • Filtering
  • Evaporating
  • Drying
  • Mixing
  • Crushing
  • Grinding
  • Ion Exchange
  • Reducing
  • Adjusting pH
  • Shredding
  • Separating
  • Biological Degradation
  • Compacting
  • Absorbing
  • Electro-winning
  • Gravity setting


If a facility generates a hazardous waste and it wants to reduce the amount of waste for disposal purposes by one of the above methods, the facility will be required to obtain a Tiered Permit from the CUPA and be subject to the associated requirements.

Some common industries that fall under Tiered Permitting are metal plating and commercial laundry service facilities.

There are five tiers for treatment of hazardous waste. The State of California of Toxic Substance Control (DTSC) has regulatory oversight for the two top tiers Full Permit and Standardized Permit facilities. The three lower tiers - Permit By Rule (PBR), Conditional Authorization (CA), and Conditionally Exempt (CE) are regulated by the local administering agency. In Fresno County, the local administering agency is the CUPA.

Tiered Permitting.PNG


  • Submit the following information electronically on the California Environmental Reporting System (CERS):
    • Facility information page
    • Tiered permitting submittal
  • Adhere to regulatory requirements based on the type of treatment system your facility operates
  • Maintain written operating instructions
  • Maintain written inspection instructions and logs
  • Obtain applicable tank and container assessments
  • Pay your fees annually to keep your permit active

For more program information on Tiered Permitting, please contact Fresno County HazMat Compliance Program at 559-600-3271 or email at: HazMatCUPA@fresnocountyca.gov