The employer shall require workers, who will be in charge of following dangerous machinery operations, to receive safety and health education and trainings specified for the said field:1. Operator in charge of hoisting fixed cranes with hoisting capacity of 3 tons or more or stacking crane with hoisting capacity of 1 ton or more.2. Operator in charge of hoisting mobile crane with hoisting capacity of 3 tons or more.3. Operator in charge of hoisting derricks cranes with hoisting capacity of 3 tons or more.4. Operator of lifts for construction work in which the height of lead rail or elevating route is longer than 20m.5. Operator of gondolas.6. Other personnel assigned by the competent authority of the central government.The aforesaid personnel means one who is qualified by trainings or capacity accreditation specified for dangerous machine operators.Self-employed persons serving as operators in charge of dangerous machinery operations described in any one of the Subparagraphs of Paragraph 1 shall receive the safety and health education and trainings specified for those categories as described in Paragraph 1 before accepting such positions.Courses and hours of the aforesaid education and trainings are subject to regulations provided in Annex 10.