(a) Notice of any resolution or ordinance adopting an official map, or making any change, addition or modification of the map, shall be published at least once in a newspaper of general circulation, and the resolution or ordinance shall not be in force until a notice of the resolution or ordinance is published.
(b) The notice shall state the substance of the resolution or ordinance and specify where a map of the area under consideration may be examined by the public.
(c) The legislative body shall record the official map as adopted in the office of the county register.