With reciprocated respect, I think that the comment to which I was responding was also pretty pedantic (and not specifically relevant to the discussion) - which is why I responded.With respect that is being pedantic, I was making a point about the nature and extent of departures from the building regs
... and, for what it's worth, and as has been said, until fairly recently Approved Doc P (which you have chosen to cite) explicitly permitted "designing and installing in accordance with say Italian or Latvian codes"