StacksVerified U.S. regulatory reference

19 CFR §18.27

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Port marks may be added by authority of the port director and under the supervision of a CBP officer. The original marks and the port marks must appear in all documentation or the electronic equivalent must appear in electronic records pertaining to the exportation.