What rule must be followed regarding clothing during explosive operations?

During explosive operations, it is critical to adhere to strict safety protocols to ensure the wellbeing of all personnel involved. The correct answer emphasizes that removal or donning of clothing must occur away from the operation site to minimize risks. This rule is vital as it prevents clothing particles or any substances that may be on garments from contaminating the operational area, which could potentially lead to hazardous situations.

When personnel are in an area where explosives are handled, any unnecessary movement or changes to their attire could increase the risk of accidents or explosive reactions. Thus, maintaining a strict protocol where no clothing changes occur in or near the operational site helps to ensure safety and reduce the chances of introducing any risk factors into the environment.

The other options do not prioritize safety adequately. While wearing clothing at all times is standard practice, the option does not address the specific context of explosive operations. The notion that garments can be changed freely or that only outer garments may be removed in the operational area could lead to increased risk, as it does not recognize the need for controlled behavior in a potentially dangerous environment.