The employer shall require workers, before serving as supervisors in charge of harmful operations, to receive following safety and health education and trainings.1. Supervisor in charge of organic solvent operations.2. Supervisor in charge of lead operations.3. Supervisor in charge of tetra-alkyl lead operations.4. Supervisor in charge of hypoxia operations.5. Supervisor in charge of specified chemical substance operations.6. Supervisor in charge of dusty operations.7. Supervisor in charge of high-pressure chamber operations.8. Supervisor in charge of diving operations.9. Other personnel assigned by the competent authority of the central government.Courses and hours of the aforesaid education and trainings are subject to regulations provided in Annex 9.