An unqualified person is never permitted to cross the restricted approach boundary.

• A. True
• B. False
• C. Only with a supervisor
• D. Only during maintenance

Answer: (A)

Understanding approach boundaries and who may cross them is key. The restricted approach boundary defines the zone around exposed energized parts where there’s a real risk of shock or arc-flash. Crossing into that zone requires the worker to have specific training and knowledge to recognize hazards, choose proper PPE, and follow protective procedures. That level of readiness is what distinguishes a qualified person from an unqualified one.

Because unqualified workers lack that protective know-how, they are not permitted to cross the restricted boundary. Having a supervisor present does not change this requirement—the rule is about the worker’s qualification, not supervision. If access is necessary, the task should be performed by a qualified person, or the equipment must be de-energized and isolated first so that the boundary risk is removed. This is why the statement is true.