Individuals who are on active military duty or employees of the federal government may be classified as residents for the purpose of payment of tuition and fees, provided that they established a domicile in West Virginia prior to entrance into federal service, entered the federal service from West Virginia, and have at no time while in federal service claimed or established a domicile in another state. Sworn statements attesting to these conditions may be required. The spouse and dependent children of such individuals shall also be classified as residents of the State of West Virginia for tuition and fee purposes. Persons assigned to full-time active military service and residing in West Virginia may be classified as in-state residents for tuition and fee purposes.