Cal. Pub. Res. Code § 41782

(a) The board may make adjustments to the amounts reported pursuant to subdivisions (a) and (c) of Section 41821.5, if the city, county, or regional agency demonstrates, and the board concurs, based on substantial evidence in the record, that achievement of the diversion requirements of Section 41780 is not feasible due to either of the following circumstances:
1. (1) A medical waste treatment facility, as defined in subdivision (a) of Section 25025 of the Health and Safety Code, accepts untreated medical waste, which was generated outside of the jurisdiction, for purposes of treatment, and the medical waste, when treated, becomes solid waste.
2. (2)
  1. (A) A regional diversion facility within the jurisdiction accepts material generated outside the jurisdiction and the conversion or processing of that material results in the production of residual solid waste that cannot feasibly be diverted. Any adjustment provided pursuant to this paragraph shall apply only to that portion of the residual solid waste produced as a consequence of processing material that is not subject to the reporting requirements of subdivisions (a) and (c) of Section 41821.5 and that cannot feasibly be allocated to the originating jurisdiction.
  2. (B) For purposes of granting the reduction specified in subparagraph (A) and for the purpose of calculating compliance with the diversion requirements of Section 41780, “regional diversion facility” means a facility which meets all of the following criteria:
  3. (1) The facility accepts material for recycling from both within and without the jurisdiction of the city or county within which it is located.
  4. (2) All material accepted by the facility has been source-separated for the purpose of being processed prior to its arrival at the facility.
  5. (3) The residual solid waste generated by the facility is a byproduct of the recycling that takes place at the facility.
  6. (4) The facility is not a solid waste facility or solid waste handling operation pursuant to Section 43020.
  7. (5) The facility contributes to regional efforts to divert solid waste from disposal.
(b) If the board makes an adjustment pursuant to subdivision (a), the annual report required pursuant to Section 41821 by the jurisdiction, within which a medical waste treatment facility or regional diversion facility described in subdivision (a) is located, shall include all of the following information:
1. (1) The total amount of residual solid waste produced at the facility.
2. (2) The waste types and amounts in the residual solid waste that cannot feasibly be diverted.
3. (3) The factors that continue to prevent the waste types from being feasibly diverted.
4. (4) Any changes since the petition for adjustment was granted or since the last annual report.
5. (5) The additional efforts undertaken by the jurisdiction to divert the waste produced at the facility.
(c) Based upon the information submitted pursuant to subdivision (b), if the board finds, as part of the biennial review pursuant to Section 41825, that the residual solid waste that previously could not be diverted can now be diverted, the board shall rescind the adjustment commensurate with the amount of diversion of the residual tonnages.
(d) It is not the intent of the Legislature to exempt any solid waste facility or handling operation from periodic tracking and the reporting of disposal tonnages in accordance with the regulations adopted by the board pursuant to subdivisions (a) and (c) of Section 41821.5, or from the permitting requirements pursuant to Section 43020.