I think part of issue is code's very, very vague and subjective:
Quote:
CVC 21755. (a) The driver of a vehicle may overtake and pass another vehicle upon the right only under conditions permitting that movement in safety. In no event shall that movement be made by driving off the paved or main-traveled portion of the roadway.
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How do you define "in safety"? Do you need 6" gap between vehicles? A 12" gap? Full meter on both sides?
And what about speed differential? DMV site says "
Watch your speed". Do they literally want me staring at speedometer as I'm filtering past cars?
CHP's guidelines were equally vague and non-specific. This lead to lots of questions and objections from cagers, so they took it down. Well, they did mention 10mph speed-differential and not splitting when traffic is over 30mph.
It's not as easy to determine violation of "in safety" clause as easily as speeding (yes, you were 11.5mph over posted speed-limit) or carpool transgressions (sign clearly says 2-people and you only have 1 in your car, except for that pregnant lady).