The Supreme Court ruled that section 3 of the Defense of Marriage Act (DOMA) was unconstitutional. This ruling affects over 1,000 federal laws related to benefits like health insurance, taxes, and retirement plans. However, it did not provide clear guidance on key issues employers face in complying, such as which same-sex marriages are recognized, whether civil unions count, and if benefits must be extended retroactively. The document advises employers to wait for further guidance from federal agencies on these open questions before making changes to their benefit plans and eligibility.