The launch of the self plus one option in the FEHB for the 2016 plan year–the open season continues through December 14–is raising a number of questions, which OPM has addressed in guidance to agencies but that do not seem to be filtering out to all of those interested. First, the “one” must be someone who is eligible as a family member under longstanding eligibility policies–domestic partners remain ineligible, for example. Second, those with only one eligible family member who now have family coverage will not be switched automatically to self plus one; they must elect it if they want it. Similarly, those with self-only coverage and who have a family member who would be eligible but who currently is not covered–such as a spouse getting coverage elsewhere–will not be automatically upgraded to self plus one; it must be elected. Third, self plus one is available even to those who have more than one eligible family member. In that case, the enrollee would designate the second person to be covered but should remember that any other family members meeting eligibility standards would have to get their health insurance elsewhere. There are situations in which that might make sense, such as when a spouse has fully paid personal health coverage from another source. In some plans, self plus one is more expensive to the enrollee than is family coverage.