Which of the following items is classified as perishable matter under HAZMAT regulations?

The classification of perishable matter under HAZMAT regulations includes items that can spoil, decay, or otherwise become unfit for use within a certain timeframe. Live animals fall into this category as they are living entities that require specific conditions to survive, making them susceptible to deterioration over time if not handled properly. Their transport must adhere to strict guidelines to ensure their health and safety, emphasizing their status as perishable matter.

In contrast, plastic waste, chemical substances, and metal scrap do not share the same characteristics of perishability. Plastic waste is non-living and does not decay in a way that affects its status as a shipping item. Chemical substances may have specific handling and transport requirements due to their potentially hazardous nature but don’t fit the definition of perishable items. Metal scrap is considered recyclable material and does not spoil or require specific temperature or handling conditions to maintain its integrity. Thus, live animals are distinctly classified as perishable matter under HAZMAT regulations due to their biological nature and the need for special care during transport.