Which of the following is a required part of transporting pesticides?

Carrying emergency response information in the vehicle is essential when transporting pesticides because it ensures that in the event of an accident or spill, first responders can quickly access critical information about the chemical's properties and hazards. This information typically includes details such as the chemical's identification, hazards it may pose, first aid measures, spill response protocols, and contact information for the manufacturer or poison control center. Having this information readily available enhances safety and facilitates appropriate emergency responses, which is a legal requirement in many regions.

The other options do not fulfill necessary requirements for safe pesticide transport. Proper licensing and training are crucial for anyone handling and transporting pesticides to ensure they understand the potential risks and correct procedures. Additionally, using placarding as required helps to notify others about the hazardous materials being transported, thus enhancing public safety.