California Public Resources Code Section 48660.5

(a) If the board finds that a shipment of used oil from a certified used oil collection center or a curbside collection program is contaminated by hazardous materials in excess of that which generally occurs in normal use, which renders the used oil infeasible for recycling, and requires that the used oil be destroyed at a substantially higher cost than the cost generally to recycle used oil, the board shall, upon application by the used oil collection center or curbside collection program, reimburse the center or program for the additional disposal cost, subject to the eligibility requirements of subdivision (b), except as provided in subdivision (c). (b) A certified used oil collection center or curbside collection program is eligible for reimbursement only if it demonstrates to the satisfaction of the board all of the following: (1) The center or program has established procedures to ensure that the used oil it generates and accepts from the public will not be mixed with other hazardous wastes, especially halogenated wastes. These procedures shall include, but not be limited to, instructing the public and employees that used oil shall not be mixed with other hazardous waste. The board shall not require a center or program to test used oil received from the public as part of these procedures. (2) The shipment contains not more than five gallons or pounds of contaminants combined, based on the contaminant concentrations and the total volume or weight of the shipment. (c) In any calendar year, a used oil collection center or curbside collection program shall be reimbursed for not more than one shipment and for not more than five thousand dollars ($5,000) in disposal costs, subject to the availability of funds pursuant to Section 48656.