Cal. Pub. Res. Code § 42991

(a) On or before May 1, 2017, and annually thereafter, a person that is engaged in business as a recycler or renovator shall submit to the department and to the mattress recycling organization a report that includes the following:
1. (1) Quantitative information on the number of mattresses received and recycled or renovated in the state during the preceding calendar year.
2. (2) Other information deemed necessary by the department that is reasonably related to compliance with this chapter and that can be reasonably compiled.
(b) For purposes of determining the used mattress recycling rate, on or before May 1, 2017, and annually thereafter, an operator of a solid waste facility or operation shall report to the department and to the mattress recycling organization, in a form and manner determined by the department, regarding the number of used mattresses received by that facility or operation that were recycled, renovated, or disposed of within the state in the preceding calendar year.
(c) The department shall make the information provided pursuant to this section available to interested parties and to the public. The department shall not disclose any confidential proprietary information.