EDUCATION: Pa. college targets burgeoning natural gas vehicles market Pamela King, E&E reporter Published: Thursday, August 22, 2013 Pennsylvania's Johnson College of Technology is gearing up to service the rapidly growing natural gas vehicles market. Please subscribe to EnergyWire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.