Yes. CNG fuel storage tanks found in natural gas vehicles are very strong and thick. They are just as safe as, or safer than, a thinner plastic or metal gasoline tank. Millions of trucks, busses and cars worldwide have been safely driving on CNG for years. These numbers include federal, state and local government vehicles. Sealed fueling systems also protect against leaks. Even if it were to escape your tank, CNG would disperse quickly into the air instead of on the ground, reducing the risk of fire and ground contamination.