If you want to see what the letter looks like when you clear Criminal Investigations as part of the Voluntary Disclosure Program, click on the link above. Warning. It’s a PDF.
Also known as a “Ticket to Philadelphia.” The train is likely to be rerouted to other offices as the volume of traffic increases at the IRS office in Philadelphia. Or, to step out of my MetaphorBoy garb for a second, if you get this letter your file will be sent to Philadelphia for final audit unless the IRS changes its procedure and sends it to a different place.