I have recently heard from a local coach company of the difficulties imposed by new government regulations on coach operators.
The company concerned had bought a new coach fleet to comply with low emissions standards, only be told that there is now an additional requirement to make all coaches accessible for wheelchair users. The company concerned on contract work supplies a coach that is wheel chair compatible when that is needed but does not have this capability on all coaches as many contract routes do not need it.
The coach industry also tells me that electric coaches are around one third dearer than diesel coaches, and have limited range. There are concerns that these will become compulsory before the range and recharging issues are properly resolved. This would make it difficult for coach companies to carry out certain return routes or excursions, given the mileage involved. It also places some services at risk were a coach to be delayed in a traffic jam, using up power on air conditioning, windscreen wipers, radio, lights etc.