1) Appointed First Aiders Where more than 25 persons are employed in a workplace, there shall be appointed in the workplace as first-aiders who shall be readily available during working hours. Such number of persons as complies with the ratio of one first-aider for every 100 persons employed in the workplace or part thereof (Workplace Safety and Health (First-Aid) Regulations).

2) Safety officers

3) Laboratory technicians

4) Workers who operate with heavy machinery etc