4A. Classes and positions with a minimum work week of 40 hours. Required work in excess of the minimum work week is compensable as overtime in accordance with the provisions of section 599.704 of these regulations. Compensable overtime may be liquidated by compensating time off. When compensating time off is not practicable, the appointing authority may authorize cash compensation.

4B. Classes and positions with a five-day work week with a minimum average of 40 hours a week during any 12 consecutive pay periods, but no specified maximum number of hours per day. Overtime does not accrue for work performed on a normal work day except as provided by section 599.710 of these regulations. Subject to the provisions of section 599.708 of these regulations, ordered work on a normal day off is compensable by compensating time off on an hour-for-hour basis not to exceed eight hours. Cash payment for ordered work on a normal day off is not permitted except upon authorization by the Department prior to the time the work is performed except as provided by section 599.710 of these regulations.

4C. Classes and positions with a minimum average work week of 40 hours. The regular rate of pay is full compensation for all time that is required for the employee to perform the duties of the position. Except as otherwise provided in Government Code section 19853, hours of work in excess of the minimum average work week are not compensable, and shall not be deemed overtime for which compensating time off is provided within the meaning of Government Code section 19839. If an employee in this subgroup is not required by the appointing power to work a normal workday or part thereof, the employee nevertheless shall receive the regular rate of pay without deduction if the absence does not reduce the employee's average workweek below 40 hours within the 12 pay periods ending with the pay period in which the absence occurred.

4D. Classes and positions having conditions or hours of work that do not fall within the above subgroups. The Department shall establish such special provisions governing hours of work and overtime compensation as the needs of the service shall require.