Cal. Educ. Code § 48263.6

Any pupil subject to compulsory full-time education or to compulsory continuation education who is absent from school without a valid excuse for 10 percent or more of the schooldays in one school year, from the date of enrollment to the current date, is deemed a chronic truant, provided that the appropriate school district officer or employee has complied with Sections 48260, 48260.5, 48261, 48262, 48263, and 48291.