Mine was made in 1973.
Lucky me, I've gotten by with a wave and a smile when being approached by police on my round the block jaunts. So far they just can't seem to take it seriously enough to become upset about it here in Jurassic Park.
Suspecting a moped licence might be most appropriate if I tried to register it here in California, but prefer to continue to get by with the laugh factor, as it's top speed limits my jaunts to my neighborhood anyway.
Then again, if I get the power steering working on my skip loader soon, I'll then be empowered to make my own road on my barn property where no such consideration applies.