Originally Posted by Duceanahalf

you only have to have a liscense to have more than a certain amount of medical grade nitrous ( i think it is something like 90Grams), the automotive nitrous is called "Nytrous plus" it contains sulfer you do not have to have a liscense for that. It is illegal to use nitrous on the street, but not to have it ( i think that the bottle has to be closed and the line disconnected)