California Code, Education Code - EDC § 52164.3

(a) Each school district shall reassess pupils whose primary language is other than English, whether they are designated as limited English proficient, or fluent English proficient, when a parent or guardian, teacher, or school site administrator claims that there is a reasonable doubt about the accuracy of the pupil's designation.

(b) In all cases of reassessment, the parent or guardian of the pupil shall be notified of the result.  This notice shall be given orally when school personnel have reason to think that a written notice will not be understood.