A typical prototype or volume-submitter document's adoption agreement often includes a fill-in-the-blank choice for specifying a State's law to govern whatever ERISA doesn't preempt (if anything).
Imagine that a user prefers not to fill in this blank. (The plan's sponsor is worried that a specification could be argued to constrain the administrator's discretion to a narrower range than would apply if the plan states nothing about State law.)
The rules for relying on the IRS's letter for a preapproved document call for staying within the confines of what the IRS approved. But the Revenue Procedure suggests that a user might vary some "administrative" provisions without losing reliance on the IRS's letter.
What do you think? If a user's adoption agreement leaves blank the State-law line (or responds "none"), does the user keep or lose reliance on the preapproved document's IRS letter?