Cal. Sts. & High. Code § 9000

The refunding of bonds issued under the “Improvement Bond Act of 1915” so as to restore property to the tax rolls and make it available for development is declared to be an important policy of this State and all necessary authority, power, and jurisdiction to impose a valid reassessment upon lands deeded to the State or to any city therein for delinquent taxes or for delinquent taxes and assessments, and to enforce the lien of such reassessment is hereby granted, and any and all acts and proceedings of every kind and nature necessary for the levy of the valid reassessment and for the enforcement of the lien of such reassessment are hereby authorized.