Sure. The only difference between LNG and CNG is the level of compression. CNG is compressed to a certain level, and LNG is compressed more to take it to a liquefied state. To keep it in that state it has to be kept cold.
The only reason we didn't really look at LNG is the delivery of fuel. For LNG to be delivered to one of our facilities to fuel our buses it would have to come by truck, the same way that diesel fuel is delivered today. If we use CNG we basically have a pipe in the ground. The CNG is compressed, and we can fill the buses that way. So in terms of a fuel delivery system, CNG is far more effective and reliable.