NGVi is now more than natural gas. Welcome to the new Alternative Fuel Vehicle Institute – AFVi!

Natural Gas Vehicle Fundamentals for First Responders

Registration fee of $199* includes:

  • 30-day unlimited access
  • Training for your entire department
  • Can be viewed in a group setting or individually assigned e-learning

*Introductory offer valid only for online registration


This course introduces first responders to the essentials of compressed natural gas vehicles: specifically, how to identify them, and the critical components that first responders must be familiar with, including cylinders, valves, pressure relief devices and tubing.

The course also presents natural gas as a transportation fuel, addressing its properties, characteristics and safety factors.

First responders will learn the key principles to be followed when fires and other emergencies unique to compressed natural gas vehicles are encountered.

This on-demand e-learning course takes approximately 1 hour to complete.



Delivery Mode

On-Demand E-Learning

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Who Should Attend?

  • Firefighters
  • Emergency Medical Teams
  • Law Enforcement
  • Other First Responders

Course Objectives

  • Describe the properties, characteristics, and hazards of natural gas
  • Identify the differences between natural gas, gasoline, and diesel fuels
  • Identify and locate specific high-pressure CNG fuel system components on vehicles and describe their operation and safety features (fittings, tubing, and lines; cylinders and valves; pressure relief devices (PRD), vent lines and caps; fuel system isolation manual valve)
  • Distinguish the differences between the four types of CNG storage cylinders, their construction methods and safety devices
  • Understand the importance of PRD vent line location and direction
  • Recognize and locate CNG vehicle placards
  • Describe steps for proper response to CNG vehicle leaks and fires

Course Outline

Module 1 Natural Gas as a Transportation Fuel
Module 2 CNG Vehicle Essentials for First Responders
Module 3 CNG Cylinders
Module 4 Pressure Relief Devices (PRDs)
Module 5 High-Pressure Fuel Lines and Vent Lines
Module 6 Manual Valves
Module 7 Typical Cylinder and Vent Line Locations
Module 8 Proper CNG Vehicle Response


Instructional staff members of colleges, universities, private training organizations, fleets, dealers or manufacturers are not candidates for this course, but have numerous options for bringing AFVi’s training classes to their campuses or facilities. For more information, contact us at 800-510-6484.