Dual enrollment in the FEHB Program is prohibited, except under very limited circumstances.  Dual enrollment is when you or an eligible family member covered under your “self and family” or “Self Plus One” enrollment is also covered under another FEHB enrollment.  For circumstances where dual enrollment is allowed, it must be authorized by the Retirement & Employee Benefits Branch and will only be allowed when you or an eligible family member would otherwise lose coverage. If you have questions, refer them to your Benefits Contact or AskBenefits@nih.gov.