Texas Compressed Natural Gas (CNG) Delivery Truck Driver Practice Exam 2025 – Your All-In-One Guide to Exam Success!

Cylinders for Compressed Natural Gas (CNG) must comply with DOT regulations. The Department of Transportation establishes specific standards and requirements for the manufacture, testing, and labeling of CNG cylinders to ensure safety and performance. These regulations are crucial because CNG is stored at high pressure, and proper adherence to DOT guidelines helps prevent accidents and ensures that the cylinders can safely withstand the pressures involved.

While other regulatory standards, like EPA regulations, focus on environmental concerns or OSHA standards focus on workplace safety, they do not specifically address the structural and safety requirements for transportation cylinders. ISO 9001 pertains to quality management systems but does not specifically cover the requirements for CNG cylinders either. Therefore, only DOT regulations directly govern the technical specifications and safety measures required for CNG cylinder design and usage.