Which class is described as requiring no special modification of work procedures?

• A. Class A
• B. Class B
• C. Class D
• D. Class C

Answer: (D)

The key idea is how work procedures are categorized by the level of safety controls needed. If a task is described as requiring no special modification of work procedures, it means your normal, approved procedures, standard personal protective equipment, and routine safety practices are enough to perform the job safely. That’s what Class C represents: tasks that fit entirely within the standard safety framework, with no extra permits, isolation steps, or altered steps required. The hazards are considered manageable under the usual controls, so you proceed using the normal workflow. The other classes point to situations where additional steps or different procedures are necessary due to higher hazards or specific conditions, which is why they don’t describe “no special modification.” So the class described as needing no special modification is the one that corresponds to Class C.