Originally Posted by
rudestuff
Correct. You need to complete the MEP training before you can start the MEIR course - presumably so that you know how to fly the aircraft and can concentrate on the IR training
This is where it gets tricky with ATOs, at least in my experience. They don't sign you off for the MEIR unless you pass a MEP. I guess because if you have the rating it's the "only" guarantee that you can actually fly a Multi engine aircraft. Only in quotes because a rating doesn't mean you can actually fly.
Is it legally required? Grey zone but not really
Is it ATO required? If they squeeze a few more bucks out of you, you bet your

it is
I'm doing all this from abroad before going to EASA land so I haven't had a chance to presently argue this but every ATO said the same thing.