Darragh O'Brien (Dublin Fingal, Fianna Fail) | Oireachtas source

First, it is extremely rare. It is whatever is not covered by the provisions relating to a material alteration of a permission, which is covered in section 137. We discussed this a little yesterday or the day before. It could be a colour scheme or something similar that is not material to the development itself. It is that type of thing. It is very rare.