Domicile is initially determined by the Office of Admissions when a student applies to Mason. Prior to submitting your intent to enroll, all communications regarding domicile classification should be made to the Office of Admissions. If a student fails to submit the Application for In-State rates, or answers NO (they don’t believe they are eligible), they are automatically classified as out-of-state.
In the case of The Choice Act, the out-of-state waiver is not a domicile determination. Rather, it's managed exclusively through an application process in the Office of military Services.