The Denver Examiner has an interesting post about Denver's recent reactive action against the huge influx of Chinese-built, sub-quality scooters. Apparently, a lot of these new cheapies have fake or non existant emissions documentation and equipment and thus, aren't SAE registered. Some are sold without proper Origin Statement paperwork, which in itself is illegal. Denver is currently rejecting folks' attempt at registering thier bikes if they don't check out, and other states are probably sure to follow.
If you or someone you know is thinking about buying a no-name scoot, check out this link first!