Section 21504 Of Chapter 6. Supervisorial Districts From California Elections Code >> Division 21. >> Chapter 6.

. Any person claiming that the estimates of population used in the redistricting pursuant to Section 21503 do not reflect the current population within the district boundaries more accurately than the most recent census data, may commence an action in the superior court in declaratory relief to determine that fact. The action shall be brought within 30 days after the adoption of the redistricting ordinance.