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Hazardous Waste – Onsite Treatment


In California, the authorization of facilities for the treatment, storage and disposal of hazardous waste is done under a Tiered Permitting system:
  • A Full Permit is granted for activities that require a federal RCRA permit (federal law: Resource Conservation and Recovery Act of 1976);
  • A Standardized Permit is granted for the treatment of non-RCRA waste generated elsewhere (offsite); and 
  • Treatment of hazardous waste generated onsite is granted under one of three tiers: Permit-By-Rule (PBR); Conditional Authorization (CA); or Conditional Exemption (CE).
The Hazardous Materials administers the Tiered Permitting program only for the onsite treatment of non-RCRA hazardous waste, or the PBR, CA, and CE tiers. The Tiered Permitting Flowchart will help you determine the correct “tier” of an onsite treatment process.

Different tiers have different requirements which may include:
  • annual notification and authorization;
  • inspections;
  • recordkeeping;
  • certification of financial assurance for closure;
  • closure plan; and 
  • environmental assessment.
The requirements are most stringent for the PBR tier.

Onsite recycling which meets certain qualifications may exempt a facility from Tiered Permitting requirements.

For more information, please call Hazardous Materials at 510-583-4910

Click Here for information on the different tiers of onsite treatment of hazardous waste


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