It's worth also noting that Reg Sec 1.401(a)(31)-1 Q&A-14 explicity says a determination letter is NOT required in order to reasonably conclude that it's a rollover eligible distribution (not that it stops other plans from asking). We liked when the distributor would print "direct rollover" on the check stub somewhere as why would they call it that if they weren't qualified to issue it as such.
QUOTE (JanetM @ Jun 4 2008, 09:07 AM)

The check is issued payable to trustee fbo participant and mailed to the participant to forward on to the trustee with additional information. We have had ERISA attorney opine that since the participant can't cash the check and it is made payable to new trustee it is still within the trustee to trustee guideline.
We did the exact same, both because we couldn't include forms and because we wanted the participant to remain involved in the process.
As for experiences, etc...
1) Since IRAs are commonly moved via transfer instead of direct rollover, one regular problem is that financial advisors try to do back office paperwork to initiate a transfer. However those forms almost never meet the requirements of a qualified plan (especially receipt of the 402(f) special tax notice and proper spousal consent). The result is having to reject the paperwork and instruct the participant on the proper distribution procedure.
2) On the trustee to trustee part. Since the direct rollover must be payable to the TRUSTEE of the receiving plan, some trustees began rejecting rollovers that were not exactly worded to their requirements. In a large company (w/ 4 DC & 4 DB plans), this made having easily accessible rollover procedures very important.
3) MRDs are a common pitfall for those over 70.5 trying to do rollovers. Some plan administrators require that the annual MRD be taken before a rollover distribution can be made (whether that policy is right or wrong has been subject of other debate). This can result in a two step process (1st MRD, 2nd rollover).