“Processing payment” means an amount paid to processors, dropoff or collection programs, curbside programs, and recycling centers by the department pursuant to subdivision (a) of Section 14573 and subdivision (a) of Section 14573.5 when the department determines that the scrap value being offered by container manufacturers, beverage manufacturers, or willing purchasers for a particular container material is insufficient to insure the economic recovery of the container type at the minimum number of recycling centers or locations required pursuant to Section 14571. The processing payment shall be determined by the department pursuant to Section 14575.