VCP & multiple employer plan

[Guest PatriciaT]

I have a client that was a participant in a multiple employer plan. My client has discovered a plan error that was in effect for many years. It seems like a pretty simple fix to go through VCP with a retroactive amendment. However, the multiple employer plan is not willing to do that (EPCRS says the multiple employer is the party that submits for VCP), so we are fixing the error via SCP. It is getting expensive for my client to fix the error, but I do not have anything to push back with, to get the plan sponsor to go thru VCP. Has anyone walked through VCP with a multiple employer plan? Is it as onerous as I am being told (the whole multiple employer plan is open to review)? Am I stuck with the m-e plan's decision? Thanks in advance.