Which occupation class includes the highest risk?

The highest risk occupation class is designated as "High - 4A." This classification encompasses jobs and functions that inherently involve greater risks due to various factors such as exposure to hazardous environments, physical demands, and high-stakes responsibilities. Occupations in this category might include those in construction, manufacturing, or emergency services, where the potential for accidents and health-related incidents is significantly elevated.

In contrast, the other categories—Low and Medium—are associated with lower risk levels. The Low class typically covers occupations that are less physically demanding and subject to fewer hazards, leading to a reduced likelihood of injury or illness. The Medium class includes a range of jobs that may present some risks, but these risks are generally manageable and not as severe as those found in the High classification. Therefore, it is clear that the High - 4A classification includes the most significant risk factors, making it the appropriate choice for identifying the highest risk occupation class.