19 CFR 112.21 : Customs Duties (§ 0.1 To Parts 400-599) — (§ 0.1 To Parts 135-140) — U.S. Customs And Border Protection, Department Of Homeland Security; Department Of The Treasury (§ 0.1 To Parts 135-140) — Carriers, Cartmen, And Lightermen (§ 112.0 To § 112.49) — Licensing Of Cartmen And Lightermen (§ 112.21 To § 112.30) — License required.

A customhouse cartage or lighterage license issued by the port director in accordance with this part or specific authorization of the Commissioner of Customs shall be required to perform Customs cartage or lighterage, except as provided in §§ 18.3 and 125.12 of this chapter or, as provided in § 112.2(b), when such merchandise is to be transported under the bond of the foreign trade zone operator, bonded warehouse proprietor, centralized examination station operator, container station operator, or a bonded carrier.