Section 20214 Of Article 7. Transit Districts—alameda And Contra Costa Counties From California Public Contract Code >> Division 2. >> Part 3. >> Chapter 1. >> Article 7.
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. All bids for construction work shall be presented under
sealed cover and shall be accompanied by one of the following forms
of bidder's security:
(a) Cash.
(b) A cashier's check made payable to the district.
(c) A certified check made payable to the district.
(d) A bidder's bond executed by an admitted surety insurer, made
payable to the district.
Upon an award to the lowest bidder, the security of an
unsuccessful bidder shall be returned in a reasonable period of time,
but in no event shall that security be held by the district beyond
60 days from the time the award is made.