All motor fuels have specific characteristics which require variations in the
disciplines of personal safety. CNG is unique as a motor fuel partially because
it is lighter than air and is typically stored at very high pressures (e.g.
3,000 - 3,600 psig). CNG fuel system classes must include information concerning
natural gas as well as the fundamentals of working with high pressure systems.
As a minimum, the CNG related training must include instruction on the following:
1. Definition of CNG
2. Working With High Pressure Gas Systems - Lines, Fittings, Tanks, Etc.
3. CNG Composition and Properties
4. Temperature/Pressure Relationships
5. Materials - Proper/Improper, Reactivity
6. Safe Fueling and De-Fueling Procedures
7. Venting To Atmosphere - Safety, Economics, Environmental Impact, Laws,
and Control Methods
8. Facility Risk Assessment and Emergency Plan
9. Overview of Gas Leak Detection Systems - Explain the Use of Fuel Odorant
10. Potential Hazards For Personnel
11. Effects of Rapid Fuel Release - Thermal and Static Charge Build-Up
12. Potential Fire Hazards - Ignition, Fire Suppression Techniques
13. Personal Protective Equipment Usage
14. NFPA, Local, State, and Federal Rules, Regulations, and Recommendations
