The employer shall require the new recruit or employees in active service who is to change his work, to receive necessary safety and health education and trainings specified for his work, except for situation where the work environment or nature of work is equivalent to that prior to the change.Workers with no fixed employers or those being directed or supervised by the person in charge of the work environment must have received the aforesaid safety and health education and trainings.Courses and hours of education and trainings of the aforesaid two Paragraphs are subject to regulations provided in Annex 14.The hours of labor e-learning via internet courses of the occupational safety and health education and trainings, designated by the competent authority of the central government, may be approved for hours of general safety and health education and trainings. However, for labor e-learning via internet courses of the occupational safety and health education and trainings, accredited by the competent authority of the central government, may be offset for at most 2 hours of general safety and health education and trainings.Workers referred to in Paragraphs 1 and 2, prior to entering a construction work site to engage in operations, who have completed construction safety training and passed the examination pursuant to Article 11-2 of the Regulations for Construction Safety and Health Facilities, may be exempted from receiving the safety and health education and training set forth in Paragraph 1.