The application of the exemptions provided by section 13(a)(14) and
section 13(b)(6) of the Act is determined in accordance with their
language and scope as explained in Secs. 783.24, 783.25, and 783.27,
with regard to the principles set forth in Sec. 783.20 and the
legislative history and judicial construction outlined in Secs. 783.28
through 783.30. Whether a particular employee is exempt depends on what
he does, as explained in Secs. 783.31 through 783.37. Whether he is
exempt from the overtime pay provisions only or from minimum wages as
well depends on whether his employment is or is not on an American
vessel, which is determined as indicated in Secs. 783.38 through 783.42.
In addition, sections 13(a)(14) and 13(b)(6), like other exemptions in
the Act, apply on a workweek basis as mentioned in Sec. 783.43 and
explained in Secs. 783.49 and 783.50.