Regulations last checked for updates: May 31, 2026

Title 19 - Customs Duties last revised: May 13, 2026

GENERAL PROVISIONS
IMPORT REQUIREMENTS
TARIFF PREFERENCE LEVEL
EXPORT REQUIREMENTS
POST-IMPORTATION DUTY REFUND CLAIMS
RULES OF ORIGIN
ORIGIN VERIFICATIONS AND DETERMINATIONS
PENALTIES
GOODS RETURNED AFTER REPAIR OR ALTERATION
source: 28 FR 14663, Dec. 31, 1963, unless otherwise noted.