California Code, Vehicle Code - VEH § 21455.6

(b)(1) The activities listed in subdivision (c) of Section 21455.5 that relate to the operation of an automated enforcement system may be contracted out by the city or county, except that the activities listed in paragraph (1) of, and subparagraphs (A), (D), (E), or (F) of paragraph (2) of, subdivision (c) of Section 21455.5 may not be contracted out to the manufacturer or supplier of the automated enforcement system.

(2) Paragraph (1) does not apply to a contract that was entered into by a city or county and a manufacturer or supplier of automated enforcement equipment before January 1, 2004, unless that contract is renewed, extended, or amended on or after January 1, 2004.