The employer shall require workers, before serving as supervisors of occupational safety and health affairs in construction industry, to receive occupational safety and health education and trainings specified for the said field. The same conditions apply to employers or their representatives who serve as supervisors of occupational safety and health affairs in the construction industry.Courses and hours of the aforesaid education and trainings are subject to regulations provided in Annex 2.Personnel stated in Paragraph 1 of this Article, who has qualification as one of following positions and have 1 year or more of experiences in construction works by January 8, 2009, is exempted from safety and health education and trainings stated in Paragraph 1 of this Article:1. Labor safety management specialist.2. Labor health management specialist.3. Labor safety and health management staff.4. Certificates of completion were awarded after passing accreditation of trainings specified for Labor safety management specialist, Labor health management specialist, and Labor safety and health management staff.