CA Gov't Code Section 25081

By ordinance the board shall provide for the holding of regular meetings of the board at the county seat.

(a)

The change of location of the regular meeting of the board is adopted by ordinance, resolution, bylaw, or other rule required for the conduct of business by the body at a regular meeting of the body.

(b)

Notice of the location change is posted in a location that is freely accessible to the public no later than the prior regular meeting of the board.