California Code, Education Code - EDC § 5092

(1) Posting the notice in three public places in the school district.

(2) Publishing the notice pursuant to Section 6061 of the Government Code. If there is no newspaper of general circulation published in the district, notice need not be published.

(3) Posting the notice on the school district's internet website.

(1) The fact of the vacancy or resignation.

(2) The date of the occurrence of the vacancy or the date of the filing of, and the effective date of, the resignation.

(3) The full name of the provisional appointee to the board and the date of the provisional appointee's appointment.

(4) That unless a petition calling for a special election, containing a sufficient number of signatures, is filed in the office of county superintendent of schools within 30 days of the date of the provisional appointment, it shall become an effective appointment.