N.J. Stat. § 39:8-12
A licensee shall inspect and certify or reject a motor vehicle presented to him for an initial inspection. Certification shall indicate that the licensee or his employee has inspected the motor vehicle as prescribed by the director and has found that the motor vehicle conforms to the standards established by law or regulation.
A licensee shall reinspect and certify or reject any previously rejected vehicle presented to him for adjustment, correction or repair, and any vehicle presented by an owner who himself has made the necessary adjustment, correction or repair. Such certification shall indicate that the licensee or his employee has reinspected the items for which a vehicle has been rejected, as prescribed by the director, and has found that the condition of the items conforms to the standards established by law or regulation.
N.J.S. § 39:8-12