(a) With respect to each employee exempt from the overtime pay
requirements of the Act pursuant to section 13(b)(14), the employer
shall maintain and preserve records containing the information and data
required by Sec. 516.2(a) except paragraphs (a) (6) and (9) and, in
addition, for each workweek, the names and occupations of all persons
employed in the country elevator, whether or not covered by the Act, and
(b) Information demonstrating that the ``area of production''
requirements of part 536 of this chapter are met.