Every vessel subject to this chapter, other than a public vessel being used for noncommercial purposes, that is operated in violation of this chapter, or of any regulation issued thereunder, or in violation of a certificate of alternative compliance issued under Rule
1 is liable to a civil penalty of not more than $5,000 for each violation, for which penalty the vessel may be seized and proceeded against in the district court of the United States of any district within which the vessel may be found.