If a public agency pays employees subject to section 7(k) for
overtime hours worked in cash wages rather than compensatory time off,
such wages must be paid at one and one-half times the employees' regular
rates of pay. In addition, employees who have accrued the maximum 480
hours of compensatory time must be paid cash wages of time and one-half
their regular rates of pay for overtime hours in excess of the maximum
for the work period set forth in Sec. 553.230.