(a) Except as otherwise provided in this subtitle, an employee who works more than the normal workweek for that employee’s unit is entitled to compensation for that overtime work in the form of:

(1) payment as provided in § 8-305 of this subtitle; or

(2) compensatory time as provided in § 8-307 of this subtitle.

(b) The Secretary shall adopt regulations to prevent:

(1) the granting of unnecessary overtime; and

(2) the failure to grant overtime compensation to an eligible employee.