New Jersey Statutes Title 51. Standards, Weights, Measures and Containers 51 § 1-64

Each weights and measures officer shall be issued a badge or a similar identification device displaying his official number when he has satisfactorily completed a course of instruction in weights and measures conducted under the direction of the State superintendent.He shall exhibit that badge or identification upon demand during the performance of his official duties. The State superintendent shall design, number, register and issue such badges or identification devices.