This category includes jobs which require few special skills and little or no previous training or work experience for the performance of routine tasks.
Employment is generally well supervised.
This category includes jobs which require some previous training experience, skill, or knowledge. This category includes, but is not restricted to, jobs which require training or experience, independent judgement and skills which are complicated and difficult to acquire. Employees may act as supervisors of Class 1 and 2 positions. This category includes jobs which require a high degree of mental activity and independent judgement. The work performed requires knowledge of the specialized field involved, the ability to make decisions, and, often, the supervision of other employees.