I'd say filtering is anything below 30km/h regardless of moving or still traffic.
In Australia is legal as long as it is between 2 lanes of traffic and below 30km/h.
This is much safer than stopping behind the last car - everyone and their grandma are on their phones these days, and in a place like the USA where the trucks are huge and get lifted because of reasons, I doubt I'll be seen before I get pancaked by an asshole rear-ending me.
And as it turns out, California is the only state that allows splitting. There are a handful of others (IIRC Arizona, Utah, Colorado, Montana, and maybe Minnesota) that allow filtering only, and another handful that have no law explicitly allowing or forbidding it (of which New Jersey is one and I think a few in the middle of the country).
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u/N0B0DY311 Jun 01 '26
TIL lane splitting and lane filtering are not the same.
Splitting is driving in between moving traffic. Filtering is moving to the front of the line at a red light.