IRS Notice 2014-19 provides guidance on the application (including the retroactive application) of the decision in United States v. Windsor, 570 U.S. ___, 133 S. Ct. 2675 (2013), and the holdings of Rev. Rul. 2013-17, 2013-38 I.R.B. 201 (Sept. 16, 2013), to retirement plans qualified under section 401(a) of the Internal Revenue Code (Code).

Notice 2014-19 will be in 2014-17, dated April 21, 2014.