Hi All First post as I've just made the switch from Vespa 250 GTS to an '08 CB600F Hornet, therefore I'm now allowed to post in forums such as this. I've been riding the Vespa for about 2 years and outgrown it, hence the upgrade. During this time however I've been doing what I consider filtering on a daily basis without issue, but reading many of the threads on the subject here I'm a little confused. Firstly, let me state I'm in NSW, so any advice should be based on the current RTA rules. The way I understand it, right now there is still some ambiguity on the rr141(c) issue regarding overtaking a stationary vehicle on the left. My take is that the rules say you can do this if the traffic is stationary and you indicate prior and during the maneuver, but people have been booked for doing the same thing. I've also read here that filtering in stop start traffic is illegal under the above rule, so it really only applies to traffic stopped at lights. While I understand lane splitting is illegal (assume this is riding between two lanes of moving vehicles), I'm still confused on filtering - in particular the following situations: 1. On a single lane (each way) road, traffic in front stops at a red light. I'm 4 cars back. Do I have to pass on the left of the stationary traffic in order to comply with the regs as there is often little room on this side to pass? 2. Three lane road each way, I'm in the middle land and traffic stops at lights. Again, 4 cars back - can I indicate into the right hand lane, cross broken white lines and move down the left side of the cars in the right hand lane to the lights or do I have to go to the left of the cars in my middle lane? Sorry if this has been posted elsewhere but I couldn't find answers to these specific common cases.