46 U.S.C. § 53304
Vessel ownership
In this chapter, a vessel is deemed to be constructed or acquired by a taxpayer if constructed or acquired by a corporation when the taxpayer owns at least 95 percent of each class of stock of the corporation.
( Pub. L. 109–304, § 8(c) , Oct. 6, 2006 , 120 Stat. 1588 .)