If a single deck bus, not coach, with more than 22 seats runs on a registered public bus service (ie not restricted to kids or factory workers) it now has to be DDA compliant. Whether VOSA roadside checks will enforce correct interpretation of rules regarding destinations etc I don't know, although they do seem to look for any excuse to issue spot fines. I assume vehicles will have to have all that is required by DDA when going for annual PCV tests. For school runs different local authorities have differing requirements. I run 30 year old Bedfords on school runs (not in Northeast) and on a once a week market day council subsidised service, and can use the coaches on that til 2020.