New Jersey Statutes Title 18A. Education 18A § 36-25.6

a. Whenever a pupil enrolled in a public school district will be absent from school, the pupil's parent or guardian shall notify the principal or the principal's designee.

b. If a pupil is determined to be absent without valid excuse from a public school, and if the reason for the student's absence is unknown to school personnel, the principal or the principal's designee shall immediately attempt to contact the pupil's parent or guardian to notify the parent or guardian of the absence and to determine the reason for the absence.