5 CFR 894.203: May I be enrolled in more than one dental or vision plan at a time?

You may be enrolled or be covered in a FEDVIP dental plan and a separate FEDVIP vision plan at the same time. But no one may enroll or be covered as a family member in a FEDVIP dental or vision plan if he or she is covered under another person's FEDVIP dental or vision self plus one or self and family enrollment, except as provided under § 890.302(a)(2) of this chapter, with respect to dual enrollments. If two parents of a TEI child are entitled to be a sponsor, they must choose one parent to be the child's sponsor. Dual enrollments of TEIs are permitted as provided under § 890.302(a)(2) of this chapter as applicable to TEI family members.