Cal. Public Resources Code § 48691

(a) A local used oil collection program shall provide for used lubricating oil collection by either of the following or a combination of the two: (1) Ensuring that at least one certified used oil collection center is available for every 100,000 residents not served by curbside used oil collection, that accepts oil from the public at no charge, during the hours the center is open for business. (2) Providing used oil curbside collection at least once a month. (b) A local used oil collection program shall include a public education program that informs the public of locally available used oil recycling opportunities. (c) A local government may implement its used oil collection program in conjunction with other similar programs in order to improve used oil recycling efficiency. (d) A local government that has implemented the used oil collection and education elements of subdivisions (a) and (b) may also include, in the local used oil collection program one or both of the following: (1) Provisions for the mitigation and the collection of oil and oil byproducts, including other solid waste that may be mixed with oil or oil byproducts from stormwater runoff, including devices to capture that stormwater runoff, such as the use of storm drain inlet filter devices. A local government shall not receive a payment pursuant to Section 48690 for the purposes identified pursuant to this paragraph unless the local government certifies that it has a stormwater management program that is approved by the appropriate California regional water quality control board and that the provisions in the local used oil collection program approved for funding under this paragraph are consistent with that approved stormwater management program. (2) A used oil filter collection and recycling program.