Cal. Food & Agric. Code § 14012

(a) Any person who is required to register pesticides under Article 4 (commencing with Section 12811) of Chapter 2, and who sells or transfers any restricted material, shall keep accurate records of the amount and type of material involved in every sale or transfer of any restricted material. The records shall be open during ordinary business hours to the inspection of the director.
(b) Each commissioner shall submit to the director a copy of each pesticide use report received pursuant to Section 14011.5, and any other relevant information the director may require. Copies of the reports from the commissioners shall be rendered to the director within one calendar month after they are received.
The contents of these reports shall be summarized quarterly by the director as to the type of material and amounts, and the summaries shall be made a public record. The director may publish or distribute the summaries.