All employed minors under the age of 18 (including minors employed by parents) must have a work permit (Education Code 49141). Work permits must be renewed at the start of each new school year or at the time the student obtains a new job. Work permits are required all year, not just when school is in session. It serves as an age certificate and states the maximum hours a minor may work. To be eligible for a Work permit, minors must attend school full time (except for summer vacation), have 85% attendance and at least a 2.0 GPA or better.