California Code, Code of Civil Procedure - CCP § 116.750

(a) An appeal from a judgment in a small claims action is taken by filing a notice of appeal with the clerk of the small claims court.

(b) A notice of appeal shall be filed not later than 30 days after the clerk has delivered or mailed notice of entry of the judgment to the parties.A notice of appeal filed after the 30-day period is ineffective for any purpose.

(c) The time for filing a notice of appeal is not extended by the filing of a request to correct a mistake or by virtue of any subsequent proceedings on that request, except that a new period for filing notice of appeal shall begin on the delivery or mailing of notice of entry of any modified judgment.