I have just found this helpful new document from the dvsa, it is not verbose but a good starter
https://www.gov.uk/government/publications/individual-vehicle-approval-iva-for-cars-help-to-get-a-pass/individual-vehicle-approval-iva-for-cars-help-to-get-a-pass (https://www.gov.uk/government/publications/individual-vehicle-approval-iva-for-cars-help-to-get-a-pass/individual-vehicle-approval-iva-for-cars-help-to-get-a-pass)
This looks really useful - they have done an excellent job on it.
Ian
Very useful. Could have done with this before doing my IVA, as I find it easier with pictures rather than faced with tons of reading :-[ :'(
As the old saying goes 'A picture says a thousand words' ;D
8)