Contracts for the purchase of supplies, equipment, and materials in excess of seventy-five thousand dollars ($75,000) shall be awarded to the lowest responsible bidder after competitive bidding, except in an emergency declared by the vote of two-thirds of the voting membership of the county transportation authority.
Source:
Section 131285, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PUC§ionNum=131285..