N.J. Stat. Ann. § 45:24-2

All transient merchants or itinerant vendors shall, before offering for sale any personal property, make a declaration, under oath, to the licensing official of the municipality in which they propose to conduct such sale, of the number of days they propose to engage in such business, together with a specific statement as to the location of such personal property by street and number and whether on the premises from which they are to be sold or in warehouses or storage.