Cal. Gov. Code § 52055

The commissioners shall provide by resolution for the time and place of holding their regular meetings. Special meetings may be called by the chairperson or by two commissioners, and notice thereof shall be mailed to each commissioner and posted in a public place at least 48 hours before the meeting. All meetings of an authority shall be open and public in accordance with the Ralph M. Brown Act (Chapter 5 (commencing with Section 54950) of Part 1).