N.J. Stat. § 54:32B-8.39
Receipts from sales of printed advertising material for distribution to out-of-State recipients and receipts from sales of processing services in connection with distribution of printed advertising material to out-of-State recipients are exempt from the tax imposed under the "Sales and Use Tax Act." The exemption provided by this section shall apply to receipts from charges for the printing or production of printed advertising material whether prepared in, or shipped into New Jersey after preparation and stored for subsequent shipment to out-of-State customers. The mail processing services exemption provided by this section shall apply to receipts from charges for all mail processing services for distribution to out-of-State recipients, including but not limited to the following: preparing and maintaining mailing lists, addressing, separating, folding, inserting, sorting and packaging printed advertising materials and transporting to the point of shipment by the mail service or other carrier.
N.J.S. § 54:32B-8.39