Pub. Contract Code, § 20134

(a) In cases of emergency, when repair or replacements are necessary to permit the continued conduct of county operations or services, the board of supervisors, by majority consent, may proceed at once to replace or repair any and all structures without adopting the plans, specifications, strain sheets, or working details or, subject to Chapter 2.5 (commencing with Section 22050), giving notice for bids to let contracts. If notice for bids to let contracts will not be given, the board shall comply with Chapter 2.5 (commencing with Section 22050). The work may be done by day labor under the direction of the board, by contract, or by a combination of the two. If the work is done wholly or in part by contract, the contractor shall be paid the actual cost of the use of machinery and tools and of material, and labor and of workers’ compensation insurance expended by him or her in doing the work, plus not more than 15 percent to cover all profits and administration. No more than the lowest current market prices shall be paid for materials whenever possible.

(b) In a county of the first, second, third, or fourth class, which is under court order to relieve jail overcrowding or in which the sheriff certifies that the inmate capacity of the county jail system is exceeded by more than 20 percent and that the overpopulation is likely to continue and poses a threat to public safety, health, and welfare, the board of supervisors may contract for the construction or expansion of jail facilities without the formality of obtaining bids, adopting plans and specifications, or complying with other requirements of this article, except as required by this subdivision. The person to whom the contract is awarded shall execute a bond for faithful performance in accordance with Section 20129. Any plans and specifications adopted by the board may only be altered or changed in accordance with Section 20135 and all contracts awarded pursuant to this subdivision may only be altered or changed in accordance with Sections 20136, 20137, and 20138. The award of the contract shall be made after a public hearing on the basis of a request for proposals advertised in accordance with Section 6062 or 6062a of the Government Code. The contract may be awarded only to a contractor who has responded to the request for proposals and who is licensed to do the work in accordance with Chapter 9 (commencing with Section 7000) of Division 3 of the Business and Professions Code. The contract shall be upon terms which the board determines are necessary for the expeditious completion of the work. A contract shall not be entered into unless at least three proposals to do the work have been evaluated by a competitive process established by the board. If the board does not select the lowest bid, it shall make a finding stating the reasons that the lowest bid was not selected.

(c) In any county that has agreed to permit the transfer of prisoners or parole violators under Section 2910 or 2910.5 of the Penal Code or of wards under Section 1753.3 of the Welfare and Institutions Code, the board of supervisors may contract for the construction or expansion of the facilities to be used for that purpose without the formality of obtaining bids, adopting plans and specifications, or complying with other requirements of this article, except as required by this subdivision. The person to whom the contract is awarded shall execute a bond for faithful performance in accordance with Section 20129. Any plans and specifications adopted by the board may only be altered or changed in accordance with Section 20135 and all contracts awarded pursuant to this subdivision may only be altered or changed in accordance with Sections 20136, 20137, and 20138. The award of the contract shall be made after a public hearing on the basis of a request for proposals advertised in accordance with Section 6062 or 6062a of the Government Code. The contract may be awarded only to a contractor who has responded to the request for proposals and who is licensed to do the work in accordance with Chapter 9 (commencing with Section 7000) of Division 3 of the Business and Professions Code. The contract shall be upon terms which the board determines are necessary for the expeditious completion of the work. A contract shall not be entered into unless at least three proposals to do the work have been evaluated by a competitive process established by the board and the lowest bid is selected.

(d) Proposed construction or expansion of jail or return-to-custody facilities as authorized under subdivision (b) or (c) shall not commence in a county of the third class without the affirmative vote of a majority of the city council of the incorporated city within which the construction or expansion is proposed.

(e) The board of supervisors may waive the requirements of Title 3 (commencing with Section 9000) of Part 6 of Division 4 of the Civil Code for work performed pursuant to subdivision (b) or (c).

(f) If any county that is under court order to relieve overcrowding in a county juvenile facility, as defined by subdivision (c) of Section 4481 of the Penal Code or in which the chief probation officer certifies that the juvenile detention capacity of the county juvenile facilities is exceeded by more than 20 percent and that the overpopulation is likely to continue and poses a threat to public safety, health, and welfare, the board of supervisors may contract for the construction or expansion of county juvenile facilities without the formality of obtaining bids, adopting plans and specifications, or complying with other requirements of this article, except as required by this subdivision. The person to whom the contract is awarded shall execute a bond for faithful performance in accordance with Section 20129. Any plans and specifications adopted by the board may only be altered or changed in accordance with Section 20135 and all contracts awarded pursuant to this subdivision may only be altered or changed in accordance with Sections 20136, 20137, and 20138. The award of the contract shall be made after a public hearing on the basis of a request for proposals advertised in accordance with Section 6062 or 6062a of the Government Code. The contract may be awarded only to a contractor who has responded to the request for proposals and who is licensed to do the work in accordance with Chapter 9 (commencing with Section 7000) of Division 3 of the Business and Professions Code. The contract shall be upon terms which the board determines are necessary for the expeditious completion of the work. A contract shall not be entered into unless at least three proposals to do the work have been evaluated by a competitive process established by the board. If the board does not select the lowest bidder, it shall make a finding stating the reasons that the lowest bidder was not selected.

(g) In a county of the third class in which there are no available courtrooms to accommodate all authorized judicial positions or in which the board of supervisors certifies that there is a significant need to expeditiously construct new court and court support facilities, the board of supervisors may contract for the construction or expansion of court and court support facilities without the formality of obtaining bids, adopting plans and specifications, or complying with other requirements of this article, except as required by this subdivision. The person to whom the contract is awarded shall execute a bond for faithful performance in accordance with Section 20129. Any plans and specifications adopted by the board may only be altered or changed in accordance with Section 20135 and all contracts awarded pursuant to this subdivision may only be altered or changed in accordance with Sections 20136, 20137, and 20138. The award of the contract shall be made after a public hearing on the basis of a request for proposals advertised in accordance with Section 6062 or 6062a of the Government Code. The contract may be awarded only to a contractor who has responded to the request for proposals and who is licensed to do the work in accordance with Chapter 9 (commencing with Section 7000) of Division 3 of the Business and Professions Code. The contract shall be upon terms which the board determines are necessary for the expeditious completion of the work. A contract shall not be entered into unless at least three proposals to do the work have been evaluated by a competitive process established by the board and the lowest bid is selected. This subdivision shall remain in effect until December 31, 1994.