Lane Splitting - what's the go?

[Bundybusa]

So basically, you can't legaly split lanes at all? Even when you are in 2 lanes of traffic and come to a a red traffic light, you can't ride up the middle of the 2 lanes of traffic to the front? I don't do this now but I see it happen so often that I sometimes wonder if it might be legal and I just didn't know about it.