Already excluded were both colour images and the mannered conceptualism of younger photographers whose work caters to the contemporary art market, for which he has scant regard.
So far, heavy-duty vehicles appear to be excluded, and either way, it's unclear how many years auto makers might have to work black boxes into their future models.
In some cases, the focus will be on helping excluded pupils or those who are not in education, employment or training - preparing them for courses or work.
With extensive cuts to healthcare and education spending at the very centre of Canada's deficit reduction work, many Canadian economists argue that it could not have been successful if they had been excluded.