On June 29, The Human Rights Campaign, a gay advocacy organization, released a report showing that 51% of Fortune 500 companies now extend health benefits to the domestic partners of their employees — double the number since 2000. Under the Federal Employees Health Benefits Act, self and family coverage is limited to the “spouses” of employees, and pursuant to the Defense of Marriage Act, a spouse is “a person of the opposite sex who is a husband or a wife.”