Seat belt laws?

this.

In my Scamp, though, I leave the shoulder belt tucked up in its mounts on the side of the headliner. Haven't been stopped for that (yet).

Ditto in my 'Cuda. I DID install 3-point belts in TurboScamp when I re-did the interior since this will be my daily driver. My turbo guy thought I was nuts for not installing 5-point harnesses, but at least the 3-point belt is a big improvement over lap belts only.