California Code, Government Code - GOV § 25508.8

(a) The board of supervisors of any county may, by resolution, authorize the purchasing agent to procure construction materials pursuant to Section 25508 for the construction of facilities to be utilized by a regional opportunity program.

(b) A county shall be exempt from requirements of the Public Contract Code with respect to the construction of a facility if the majority of labor utilized for the construction of the facility pursuant to subdivision (a) is provided by the regional opportunity program or volunteer labor, the facility is to be constructed for use by the regional opportunity program, and the land on which the facility is to be constructed is currently used by a county jail.