California Code, Government Code - GOV § 65353

(a) When the city or county has a planning commission authorized by local ordinance or resolution to review and recommend action on a proposed general plan or proposed amendments to the general plan, the commission shall hold at least one public hearing before approving a recommendation on the adoption or amendment of a general plan.  Notice of the hearing shall be given pursuant to Section 65090.

(b) If a proposed general plan or amendments to a general plan would affect the permitted uses or intensity of uses of real property, notice of the hearing shall also be given pursuant to paragraphs (1) and (3) of subdivision (a) of Section 65091.

(c) If the number of owners to whom notice would be mailed or delivered pursuant to subdivision (b) is greater than 1,000, a local agency may, in lieu of mailed or delivered notice, provide notice by publishing notice pursuant to paragraph (4) of subdivision (a) of Section 65091.

(d) If the hearings held under this section are held at the same time as hearings under Section 65854, the notice of the hearing may be combined.