Decision of -- opinion of -- priorities of -- your local legislators; City Council, County Supes, whatnot ruling body.
Here in Clearlake we have a terrible problem with dilapidated properties, outright trash and junk, abandoned cars and burned-out RVs, boats that have not seen water in 20 years and for good reason, and so on.
Thru the years, the City Council has enacted ordinances to combat these problems.
And five part-time Council-members working full time day-jobs simply do not have the capacity to anticipate every possible contingency, such as your classic auto or my Bluesmobile -- which was cited some years ago before I made room for it inside.
So... any motor vehicle that is clearly not in use, is by definition an eyesore, if visible from any public location. Lack of current registration constitutes proof, and any police patrol or code enforcement employee can run the plate in seconds. No front plate? Violation, Sec. 5200 (a) CVC, Display of License Plates.
I'm in favor of preventing and abating eyesores. I volunteer several hours a week picking up junk and trash in public places and vacant lots.
A couple weeks ago I boarded up an abandoned building -- and painted over the graffiti. Vagrants have already broken in, leaving my freshly painted plywood dangling.
I keep a lot of Stuff myself, and every day I look at my place from the street and ask myself if I can tidy it up better.
When I bring home a new treasure, such as the clever folding trundle bed mechanism I scored yesterday, I place it in the Magic Triangle behind my house that is not visible from either street.
And my knee hurts, so I'm a little grumpy today. ;-)
(CVC = California Vehicle Code)
(My Bluesmobile is a PEDAL CAR.)