Code of Federal Regulations Title 29. Labor § 29.553.50 Records to be kept of compensatory time

(a) The number of hours of compensatory time earned pursuant to section 7(o) each workweek, or other applicable work period, by each employee at the rate of one and one-half hour for each overtime hour worked;

(b) The number of hours of such compensatory time used each workweek, or other applicable work period, by each employee;

(c) The number of hours of compensatory time compensated in cash, the total amount paid and the date of such payment;  and

(d) Any collective bargaining agreement or written understanding or agreement with respect to earning and using compensatory time off. If such agreement or understanding is not in writing, a record of its existence must be kept.