Great find, Bryn! Thanks for posting it.
For once it seems we have a well-written and informed article about an aspect of motorcycling which has appeared in a mainstream publication. I'm actually somewhat pleasantly surprised.
And, I think all of these "new guidelines" which this article says the CHP has decreed are rational and well-considered, and that it's about time that these have been "codified" to a certain degree.
(...and ALL of which I ALWAYS adhered to when I lived in California, and as I mentioned earlier when I took exception to some of the practices those so-called "expert motorcyclists" pushed in their video)