Title 19 of the Code of Federal Regulations
CFR Title 19 – Customs Duties is one of fifty titles comprising the United States Code of Federal Regulations, containing the principal set of rules and regulations issued by federal agencies regarding customs duties. It is available in digital and printed form, and can be referenced online using the .
Structure
The table of contents, as reflected in the e-CFR updated March 4, 2014, is as follows:| Volume | Chapter | Parts | Regulatory Entity |
| 1 | I | U.S. Customs and Border Protection, Department of Homeland Security; Department of the Treasury | |
| 2 | U.S. Customs and Border Protection, Department of Homeland Security; Department of the Treasury | ||
| 3 | II | United States International Trade Commission | |
| III | International Trade Administration, Department of Commerce | ||
| IV | 400-599 | U.S. Immigration and Customs Enforcement, Department of Homeland Security |