[RWebb]

are you inside a city or out in the county?

as an example, in Eugene, Oregon you must have unlicensed vehicles stored behind a fence or covered up - enforcement is only by complaint; otherwise, they don't check

but right outside the city limits, Lane county rules apply and you can stack up derelict vehicles or parts thereof as much as you want

so I doubt Reno/Sparks is any more stringent and DMV is not the issue for that, here