The reasoning behind my comment. All costs are a best guess…:
I’m assuming that any safety inspection will be to the same standard, if not better, than a Class V MOT. A quick google shows a price of about £60 for the MOT, so I would assume that a safety inspection would be a similar price, although it probably costs more, since MOT prices are fixed by the government. I’m guessing you can expect to pay around £100 ph per inspection.
The DVSA guide mentions inspection intervals of around 13 weeks between inspections. From what I can gather, we can extend that period*, so lets say an extra hundred pounds a year (if you can count the MOT as a safety inspection; £200 per year if not).
Ramps and lifts (if Fitted) also need to be inspected every 6 months by a competent person, and weight tested yearly. Lets put that at £100 for inspection and £100 for testing - £300 per year.
Best case - we’re expected to pay an additional £100 per year (£400 if your bus has ramps and lifts)
If we act in accordance with the Permit 19 conditions, it could end up a bit more expensive:
So every 13 weeks (minimum) = £400 extra per year, or £100 for a fresh inspection when you plan to take it out, if it’s laid up for any period of time.
Worse case, we’re looking at extra bills of £400 (£700 if you have ramps fitted) per year, per bus, before the MOT and servicing…
*If we wanted to make a case for extending the safety inspection times, I think it would need someone to become a Duty Holder, and who was prepared to stand up in court and state the reasons why the RAFAC have gone against DVSA guidance.