Section 13(a)(1) of the Act provides that the provisions of sections
6 and 7 shall not apply with respect to:
Any employee employed in a bona fide executive, administrative, or
professional capacity (including any employee employed in the capacity
of academic administrative personnel or teacher in elementary or
secondary schools), or in the capacity of outside salesman (as such
terms are defined and delimited from time to time by regulations of the
Secretary, subject to the provisions of the Administrative Procedure
Act, except that an employee of a retail or service establishment shall
not be excluded from the definition of employee employed in a bona fide
executive or administrative capacity because of the number of hours in
his workweek which he devotes to activities not directly or closely
related to the performance of executive or administrative activities, if
less than 40 per centum of his hours worked in the workweek are devoted
to such activities).