ESOP,
Thanks for responding. Yes, the DC plan and the 401k plan have already merged. The guy is retired, and he wants to roll over a portion of his money into an IRA. The merged plan document does not address what happens to the remainder that isn't rolled over. We are trying to figure out if the IRS requires that the remainder be distributed or if he can leave it behind in the merged plan. We can certainly amend the plan document to do what is required, but I don't know what is required.
I hope this clears up the confusion.