Notwithstanding Section 20761, 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.
Source:
Section 20761.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PCC§ionNum=20761.5..