What is the 'Move Over' law in NSW, and what speed limit applies?

1. Move into the right lane when passing police; no speed limit required
2. Slow to 40 km/h when passing a stationary emergency vehicle with flashing lights on a road with a limit of 80 km/h or less
3. Slow to 40 km/h and move lanes if possible when passing stopped emergency vehicles and tow trucks with lights on
4. Stop completely until any emergency vehicle moves on