Thank you, as always, Metacortex!

'76 was the date I recalled for CPSC implementation but me "memory" did not have one for the "lawyer clips."

Does anyone know for certain if the wheel retention device under discussion was mandated by the CPSC regulations?

Asking because the slang term "lawyer clips" suggests they may have been begun by industry itself in an effort to ward off lawsuits.

Thanks for any information.