What is a key requirement for pyrotechnic materials not stored in a magazine?

The key requirement for pyrotechnic materials not stored in a magazine is that they should remain in their USDA containers until use. This is important because these containers are specifically designed to safely hold and protect pyrotechnic materials from environmental factors that could lead to degradation or unintended ignition. The integrity of these containers helps ensure safety and compliance with regulations governing the storage and handling of hazardous materials.

Storing pyrotechnic materials in USDA-approved containers allows for better control of the storage conditions, reducing the risk of incidents caused by exposure to moisture, temperature fluctuations, or physical damage. Maintaining these standards is critical for both safety and the effective performance of the pyrotechnic materials during their intended use.