California Constitution Article XI § 8 – (a) The Legislature may provide that counties perform municipal …
(a) The Legislature may provide that counties perform municipal functions at the request of cities within them.
(b) If provided by their respective charters, a county may agree with a city within it to assume and discharge specified municipal functions.
(Sec. 8 added June 2, 1970, by Prop. 2. Res.Ch. 331, 1969.)