### Question
How is the "vessel of the United States" defined?


### Answer
The term **vessel of the United States** is defined in *19 CFR § 4.0* as follows -

> any vessel documented under the laws of the United States.

#### Citation:
  - *19 CFR § 4.0*
  - Heading: **PART 4—VESSELS IN FOREIGN AND DOMESTIC TRADES**

