The Defense of Marriage Act (DOMA) defines marriage at the federal level as a legal union between one man and one woman and excuses states from any obligation to recognize same-sex marriages recognized in any other state. As a result, many states have enacted so-called “mini-DOMA” laws providing that those states will not recognize for any purpose same-sex marriages recognized in other states.

As has been widely reported, DOMA’s constitutionality is currently under consideration by the U.S. Supreme Court in United States v. Windsor and a decision is expected in June. If DOMA is struck down, employers and other benefit plan sponsors should consider the potential effects not only on the definition of “spouse” for benefits purposes, but also the definition of “child.”