Is CNG safe?
http://www.oringcngfuelsystems.com/is-cng-safe/
The answer to this is, unequivocally, yes CNG is a safe form of energy. However, there are many myths out there regarding the dangers of CNG and we would like to discuss those here. For a visual demonstration of just how safe CNG is, please check out these three videos:
Gun Test on Natural Gas Tank
https://www.youtube.com/watch?v=irvktfQvu4M&feature=related
Dynamite Test on Natural Gas Tank
https://www.youtube.com/watch?v=5ZUK-HJOfvU&feature=related
Severe Abuse Test on Natural Gas Tank
https://www.youtube.com/watch?v=M-ExcJ7PaRc
New OEM natural gas vehicles are subjected to the same federal government crash tests as other vehicles. OEM natural gas vehicle fuel systems must meet Federal Motor Vehicle Safety Standards 303 and 304. Natural gas cylinders are much thicker and stronger than gasoline or diesel tanks. Cylinders are designed not to rupture when fully fueled over six times a day, 365 days a year, far beyond what they will see in service. They are designed for a specific lifetime from 15 up to 25 years and are required to be inspected every 3 years or 36,000 miles.Industry standards test them far beyond normal environmental and service damage risks. Cylinders must even withstand a bonfire test, crash tests, and penetration by a 30-caliber bullet without rupture!
I just have a hard time imagining sitting on one.