Which of the following refers to a spill involving multiple packages?

A spill involving multiple packages is referred to as a large spill. This classification is based on the volume of hazardous material released and the potential impact it may have on the environment and human health. When dealing with large spills, responders must take extra precautions and implement more comprehensive response strategies due to the increased risk posed by the larger volume of hazardous materials that can spread quickly and create wider contamination.

In contrast, a primary spill typically concerns an initial release from a single package, which may not entail the complexities or risk factors associated with multiple packages. A secondary spill refers to a situation where a spill occurs as a result of a primary incident, often during transport or transfer activities, and it usually involves smaller quantities or residues. Finally, a small spill refers to a minor release of hazardous materials that can often be contained and cleaned up with minimal resources and impact. Understanding these classifications helps responders effectively assess the situation and determine the required response protocols.