Which conditions must be met for a self-defense spray to be allowed in checked baggage?

For self-defense spray to be allowed in checked baggage, it must have a prevention mechanism for accidental discharge because safety is a paramount concern in the transportation of hazardous materials. A prevention mechanism ensures that the spray cannot be activated unintentionally, which not only protects baggage handlers and airline personnel during transport but also guards against unintended exposure to other passengers' luggage. This requirement is in line with regulations that govern the safe handling and storage of items that could potentially cause harm if activated inappropriately.

Although items that meet different standards may be considered, the stipulation for a prevention mechanism is crucial for minimizing risk and ensuring compliance with aviation safety regulations. Other characteristics of the self-defense spray may vary, but this particular requirement is central to acceptable practices in air travel.