Which of the following is NOT required to determine if placards are needed?

Determining the need for placards when transporting hazardous materials is based primarily on the type and quantity of the material being transported, as these factors play a critical role in assessing risk and compliance with regulations. The type of material indicates the potential hazards associated with it, while the quantity helps to determine the severity and level of response needed in the event of an incident.

However, the manufacturing date of the material does not have a direct impact on whether placards are required. While it may be relevant for tracking the shelf life or safety standards of certain products, it does not influence the classification or transportation requirements under hazardous materials regulations. Therefore, understanding these logistics allows for appropriate safety measures, like placarding, to be implemented based solely on the characteristics of what is being transported rather than the age of the materials.