hey guys, i have been doing some searching on the web for laws about nitrous to find out the legalities. I had a cop question me about it a couple weeks ago & i told him that the bottle was empty & that it was for show & that i was on my way back from a car show that was down the street. I'm just curious as to what the laws actually are. When i installed the nitrous system 3 years ago, i was told that it was legal to have, as long as it wasn't being used on the street. Does anyone know what the current laws are. It may be by state & i might have to call the state highway patrol to find out but i figured i would make a thread so that everyone else was aware of the laws as well.