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.