Mark, No problem from me. I doubt that there is anyone who can say for certain "why" California specified one-piece bumpers. The quote above is from an unspecified source. What-ever the reason, they did it. It's simply part of the history of these cars. Whether it was for safety or road debris really doesn't matter to me other than curiosity.
For what its worth, there are no service replacement numbers for those one-piece bumpers. I believe the edict was that any car "delivered to California" must have them. It was definitely not only cars built in California because I have documented several cars with one-piece bumpers (orig) that were built at other plants out of state. So, having those bumpers is no guarantee that the car was "built" in California; only that it was "sold" new in California. And 1962 was the last year for the one-piece.
Verne
