Whoever, being a citizen or resident of the United States, voluntarily serves on board of any vessel employed or made use of in the transportation of slaves from any foreign country or place to another, shall be fined under this title or imprisoned not more than two years, or both.
18 U.S. Code § 1586 - Service on vessels in slave trade
Historical and Revision Notes
Mandatory-punishment provisions were rephrased in the alternative.
1994—Pub. L. 103–322 substituted “fined under this title” for “fined not more than $2,000”.