In case of an emergency, the board may, by resolution passed by a four-fifths vote of all of its members, declare and determine that public interest and necessity demand the immediate expenditure of public money to safeguard life, health, or property, and thereupon proceed to expend any sum or enter into a contract involving the expenditure of any sum needed in the emergency without observance of the provisions requiring contracts, bids, or notice. If notice for bid to let contracts will not be given, the board shall also comply with Chapter 2.5 (commencing with Section 22050).
Source:
Section 20751.1, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PCC§ionNum=20751.1..