Cal. Pub. Cont. Code § 10327

Except for motor vehicles described in Section 43805 of the Health and Safety Code, the provisions of Article 1 (commencing with Section 43800) of Chapter 4 of Part 5 of Division 26 of the Health and Safety Code shall govern the acquisition of all motor vehicles by the state to the extent that the department determines that these low-emission vehicles are reasonable to meet state needs pursuant to Section 43804 of the Health and Safety Code.