I don't know what that means.
I am not entirely sure either, but I can imagine an older bus converted to electric would mean a smoother ride and give it a long lifetime boost - as well as possibly making it usable in low emission zones as more and more are created. We've had accessible buses for a very long time, so they should already be compliant in that regard.
Many classic cars get the EV conversion treatment by specialists, and it's amazing to see their transformation. Some will be devastated at the thought, but it gives new life to older vehicles that haven't rusted away to nothing by now.
