What permits must be present at the dispensing facility before filling a composite cylinder?

• A. Local business license
• B. DOT special permits
• C. Fire permit
• D. Safety training certificate

Answer: (B)

The key idea is that filling composite propane cylinders requires regulatory authorization from the Department of Transportation. Composite cylinders are built differently from standard metal cylinders, and they often need a DOT special permit that specifically allows their filling and use. This permit confirms the cylinder design, testing, labeling, and handling requirements are being met, and it must be present at the dispensing facility to demonstrate compliance before any filling occurs.

A local business license is about the general operation of the business, not the authorization to fill a particular type of cylinder. A fire permit relates to fire code compliance, not to the regulatory approval for filling composite cylinders. A safety training certificate shows personnel have been trained, but it does not by itself authorize filling; the special DOT permit is what legally allows the facility to fill those cylinders. So, having the DOT special permits is the necessary and appropriate requirement.