### Question
Can you define what semi-submersible vessel means?


### Answer
**Semi-submersible vessel** is defined as the following in *46 U.S.C. § 70502*:

> any watercraft constructed or adapted to be capable of operating with most of its hull and bulk under the surface of the water, including both manned and unmanned watercraft

#### Citation:
  - *46 U.S.C. § 70502*
  - Heading: **Subtitle VII-Security and Drug Enforcement > CHAPTER 705-MARITIME DRUG LAW ENFORCEMENT**

