Page 10 - CNG ESP Participant Guide2024
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NGV Essentials and Safety Practices
Background Natural gas vehicles (NGVs) are very different from those powered by liquid fuels
because natural gas is a gas.
Compressed natural gas (CNG) vehicles store fuel at extremely high pressures and,
although these vehicles are manufactured to extremely stringent safety standards,
technicians working on, or around, natural gas vehicles must be familiar with the
safety hazards and common safety practices that should be followed.
Purpose of Training To provide the necessary safety and technology information for technicians and fleet
operations personnel to safely work on or around natural gas-powered vehicles.
Target Population Heavy- and light-duty fleet and dealership vehicle technicians, maintenance
supervisors, fleet managers and other related team members responsible for
performing CNG vehicle maintenance.
Course Objectives ▪ Explain the properties and characteristics of natural gas
▪ Compare natural gas, gasoline, and diesel fuels
▪ Recognize all major low- and high-pressure CNG fuel system components; describe
their operation and safety features
▪ Describe the differences between dedicated, bi-fuel, and dual-fuel NGVs
▪ Employ safety precautions and techniques when servicing natural gas-powered
vehicles
▪ Understand CNG fueling station equipment, safety devices, operation and fueling
procedures
▪ Identify CNG defueling methods and the related safety precautions
Course Materials Participant Guide
NGV Essentials and Safety Practices (CNG & LNG) © 2024 AFVi All Rights Reserved Page 10
