(a) “Vote by mail voter” means any voter casting a ballot in any way other than at the polling place.
(b) “Special absentee voter” means an elector who is any of the following:
(1) A member of the Armed Forces of the United States or any auxiliary branch thereof.
(2) A citizen of the United States temporarily living outside of the territorial limits of the United States or the District of Columbia.
(3) Serving on a merchant vessel documented under the laws of the United States.
(4) A spouse or dependent of a member of the Armed Forces or any auxiliary branch thereof.