CA Gov't Code Section 53979

(a)

Chapter 9 (commencing with Section 860) of Title 10 of Part 2 of the Code of Civil Procedure applies to any judicial action or proceeding to validate, attack, review, set aside, void, or annul an ordinance approved by the voters on or after January 1, 1986, that levies a special tax, or modifies or amends an existing ordinance that levies a special tax.

(b)

Any appeal from the final judgment in an action or proceeding brought pursuant to subdivision (a) shall be filed within 30 days after entry of the judgment.