yeah in the code book for the commonwealth of va there is nothing about nitrous, as a matter of fact i don't think the word is in there but the worst you can get for it would be an improper equipment, or unapproved equipment charge. which means come to court and tell the judge it's gone, and out goes your ticket. or if you don't wanna miss a day of work, pay it and it won't go on you license. it's like $40.00 or somethin. i would bring it to court, but thats my opinon. but anyway, thats all i can say about it.