34:2-21.8. Issuance of certificates; prerequisites

(1) A promise of employment signed by the prospective employer
(2) Evidence of age showing that the minor is of the age required by this act.
(3) A statement of physical fitness.
(4) A school record signed by the principal of the school.

34:2-21.10. Employment certificate; contents

An employment certificate shall state the name, sex, color, date and place of birth, residence, color of hair and eyes, height, weight, any distinguishing facial marks of the child-the employer's name, address and type of business, the occupation of the child, the kind of proof of age submitted, the grade completed, physician's approval and the name and address of parent. Every such certificate shall be signed in the presence of the issuing officer by the child in whose name it is issued. 

A vacation certificate is another name for working papers during school vacations and days off from school, including Saturdays. Air Castles And Slides, LLC only gets vacation certificates.

Section 17 to P.L. 1940, c. 153 (C. 34:2-21.17) shall not apply to minors under the age of 18 years who participate or work in any junior achievement program. As used in this act “junior achievement program” means any program under which minors under the age of 18 engage in business enterprises or activities pursuant to an economics education program conducted under the guidance of adult sponsors from private business and industry.

1. Enrolled in a course of study and training in a cooperative vocational training program under a recognized State or local educational authority or in a course of study in a substantially similar program conducted by a private school;
2. Between the ages of 16 years and 18 years of age;
3. Employed under a written agreement which provides that:
   i. Work in a particularly hazardous occupation is incidental to the minor's training;
   ii. Work is intermittent and of short duration, and under the direct and close supervision of a qualified and experienced person; and
   iii. Safety instruction is given by the school and correlated by the employer with on-the-job training.
4. For whom an individualized training plan of organized and progressive training to be “performed on-the-job” and related school instruction has been developed. Each training plan will contain:
   i. Tasks to be performed by the student learner on the job;
   ii. A progression of in-school learning experiences that relate to the on-the-job training; and
   iii. An outline that identifies safety instruction and occupational competencies to be learned at the training site and in school;
5. For whom training site supervision must be conducted by the school coordinator at intervals not to exceed once every two weeks, to ensure that the student learner is free from exploitation and that a safe training environment is maintained;
6. Who may perform certain permitted hazardous occupations only at those sites registered with the Department of Education/Vocational Division prior to the placement of student learners and on whose employment certificate will be placed the registration number of the site to identify the student as a cooperative education student learner; and
7. For whom training site experiences may not exceed five hours on any day that school is in session nor may the combination of school and work exceed eight hours on any day that school is in session.

• Minors must be at least 14 years of age to be employed in the state of New Jersey (except for work like; babysitting, house cleaning, picking up toys, using popcorn machines, and newspaper routes are acceptable for children under 14 years.)

• May not work over 8 hours a day or 40 hours a week during a school vacation.

• May work until 9 p.m. (with a parent or guardian’s written permission) during school summer vacation (end of school year until Labor Day).

• May not work before 7 a.m.

• Also, minors at least 14 years of age may be employed as golf caddies and pool attendants.