Policy Statement 4-120The following is from a TNT article discussing this development (Eric Kroh, IRS Says It Will Obtain Search Warrants for All Emails, 2013 TNT 90-2 (5/9/13)):
Approved: May 3, 2013
(1) Policy Regarding Requests for the Content of Email Communications under the Electronic Communications Privacy Act and the Stored Communications Act.
(2) The IRS will follow the holding of United States v. Warshak, 631 F.3d 266 (6th Cir. 2010), and obtain a search warrant in all cases when seeking from an internet service provider (ISP) the content of email communications stored by the ISP. Accordingly, such information will not be sought from an ISP in any civil administrative proceeding.
(3) Any existing IRS guidance that is not in accord with the foregoing policy statement will be updated.
An IRS spokesman, when asked whether the May 8 statement applies to all electronic communications or to e-mails only, replied, "We are currently aware of and reviewing this issue, our policies, and our guidance, and will update them as appropriate."