Jenson Button,
As far as I know the embraer would have to be on the TRSS scheme, even the CRJ is the same. As a general rule, you have to fly jets weighing more than 45 tonnes to be concidered as a DEP. This summer they concidered flying the BAE146 as DEP, but I think this procedure has stopped again after a few "incidents" on the line in EZY. I could be wrong though.