PRC §41781: (a) Except as provided in Sections 41781.

(a) Except as provided in Sections 41781.1, and 41781.2, for the purpose of determining the base rate of solid waste from which diversion requirements shall be calculated, “solid waste” includes only the following: (1) The amount of solid waste generated within a local agency’s jurisdiction, the types and quantities of which were disposed of at a permitted disposal facility as of January 1, 1990. Nothing in this section requires local agencies to perform waste characterization in addition to the waste characterization requirements established under Sections 41030, 41031, 41330, 41331, and 41332. (2) The amount of solid waste diverted from a disposal facility, transformation facility, or EMSW facility, through source reduction, recycling, or composting. (b) For the purposes of this section, “solid waste” does not include solid waste that would not normally be disposed of at a disposal facility. (c) For the purposes of this chapter, the amount of solid waste from which the required reductions are measured shall be the amount of solid waste existing on January 1, 1990, with future adjustments for increases or decreases in the quantity of waste caused only by changes in population or changes in the number or size of governmental, industrial, or commercial operations in the jurisdiction.