Training Executive Training Supervisor Training Once appointed, all supervisors are required to complete training that meets the mandated 80-hour supervision requirement. Upon completion of initial training, supervisors are required to complete a minimum of 20 hours of leadership training and development every two years. (GC 19995.4.) 80-Hour Supervisory Training – Finalize the 80-hour curriculum and align the training program with the leadership philosophy, values and competencies.