Cal. Pub. Res. Code § 42823.5

(a) A cement manufacturing plant shall be exempt from the requirement to obtain a permit pursuant to Section 42823 if the operator of the cement manufacturing plant meets both of the following requirements:
1. (1) The owner or operator of the cement manufacturing plant stores not more than a one-month supply of waste tires at the site of the cement manufacturing plant at any time. A one-month supply of waste tires shall be based on either of the following:
  1. (A) The average monthly consumption of waste tires by the plant during the previous year.
  2. (B) The waste tire percentage of the total fuel supply allowed by the air pollution control district or air quality management district, multiplied by the average monthly consumption of fuel for the previous year.
2. (2) The operator or owner of the cement manufacturing plant is in compliance with any regulations adopted by the board pertaining to waste tire storage and disposal.
(b) To apply for the exemption provided by this section, the operator or owner of a cement manufacturing plant shall provide all of the following information to the board in writing:
1. (1) The name, address, and physical location of the plant.
2. (2) The name, address, and telephone number of the plant operator and owner.
3. (3) Information describing compliance with subdivision (a).
4. (4) Signatures of the operator and owner of the plant certifying to the accuracy of the information provided.
(c) If there is any change to the information provided pursuant to subdivision (b), the operator or owner of the cement manufacturing plant shall report the change to the board, in writing, within 30 days from the date of the change.
(d) Within 60 days from the date of the receipt of the information required by subdivision (b), the board shall determine whether the operator or owner of a cement manufacturing plant qualifies for the exemption provided by this section and shall notify the operator or owner of the plant of its determination in writing.
(e) The board or the local enforcement agency may inspect a cement manufacturing plant that receives the exemption provided by this section to determine compliance with this section.
(f) Any operator or owner of a cement manufacturing plant who receives an exemption pursuant to this section shall allow the board, upon presentation of the proper credentials, to enter the cement manufacturing plant during normal working hours to examine and copy books, papers, records, or memoranda pertaining to the use and storage of waste tires, and to conduct inspections and investigations pertaining to waste tire use and storage.