Accommodations on ships vary according to deck levels.
(a) Other than lowest first-class—
All classes above the lowest first-class, includes but is not limited to a suite.
(b) Lowest first-class—
The least expensive class of reserved accommodations available on a ship.
Code of Federal Regulations
[FTR Amdt. 70, 63 FR 15955, Apr. 1, 1998, as amended by FTR Amdt. 2009-06, 74 FR 55149, Oct. 27, 2009]