In this chapter:
(1) "Federal ballot" means a ballot voted under this chapter that is restricted to federal offices only.
(2) "Federal office" means the offices of president and vice-president of the United States, United States senator, or United States representative.
(3) "United States" includes the several states and the District of Columbia, the Commonwealth of Puerto Rico, Guam, and the Virgin Islands, but does not include any other territory or possession of the United States.