- Section 20120 - Applicability of article
- Section 20121 - Work required to be done by contract
- Section 20121.1 - Work necessary to maintain landfill operations
- Section 20122 - Estimated cost less than $6,500 need not be done by contract
- Section 20123 - Cost under $50,000 in counties of 2,000,000 or more
- Section 20123.5 - Splitting or separating into smaller works orders or projects
- Section 20124 - [Effective until 1/1/2030] Duty to adopt plans, specifications, strain sheets and working details
- Section 20124 - [Operative 1/1/2030] Duty to adopt plans, specifications, strain sheets and working details
- Section 20125 - Notice inviting bids
- Section 20126 - Locations of possible materials specified in bid subject to section 1602, Fish and Game Code
- Section 20127 - Opportunity to examine plans, specifications, stain sheets and working details
- Section 20128 - Awarding contract; performance
- Section 20128.5 - Awarding individual annual contracts
- Section 20129 - Bidder's security
- Section 20130 - Rejection of bid and work ordered done by day's work
- Section 20131 - Power of county employing purchase agent
- Section 20132 - Delegation of power to enter into and execute contracts
- Section 20133 - [Repealed]
- Section 20134 - Cases of emergency; construction or expansion of jail to relieve overcrowding or return-to-custody facilities
- Section 20135 - Altering or changing plans or specifications
- Section 20136 - Altering or changing contracts
- Section 20137 - Change or alteration specified in writing; cost of change or alteration
- Section 20138 - Modification reducing cost
- Section 20139 - Liability for extra work done or extra material furnished
- Section 20140 - Method of payment for construction contracts
- Section 20141 - Construction of juvenile forestry camps or juvenile homes, ranches or camps
- Section 20142 - [Effective until 1/1/2027] County engineer or other officer authorized to order changes or additions
- Section 20142 - [Operative 1/1/2027] County engineer or other officer authorized to order changes or additions
- Section 20143 - Contract provision for performance of extra work and furnishing of materials
- Section 20144 - Inapplicability to structure located in Napa County known as Old Bale Mill
- Section 20145 - County officer authorized to perform acts of board in counties of 6,000,00 or over
- Section 20146 - [Effective Until 1/1/2029] Construction manager at-risk construction contracts
- Section 20147 - Contract entered into by San Diego County for regional communications system