California Code, Streets and Highways Code - SHC § 5411

At any time after the first day of July next succeeding nine months following the date of recording the assessment, the contractor or his assignee may sue in his own name the owner of the land, lots or portions of lots assessed on the day of the date of the recording of the warrant, assessment and diagram, and recover the amount of any assessment remaining unpaid together with interest and any penalties allowed under this chapter.  If any state, county or municipal taxes or any other special assessment is delinquent on the property the action may be brought at any time after 90 days after the recording of the assessment.