I am currently performing a Regulation D review and I'm looking for some information in writing. Presently, my employer requires that a client have 3 consecutive months of excess activity before changing or closing the account. I have always looked at it as 3 times in a rolling 12 month period. Is this anywhere in writing?

In the FRRS binders under Regulation D, Rulings and Opinions you will find multiple opinions on NOW accounts and MMDAs that might help you answer your questions. It starts on page 2.230 through 2.240.2.

The rolling 12 month period is the one the Fed uses and it's their regulation. However, I do not know where you would find it in writing, perhaps their examination procedures. It's not in the regulation.