R.I. Gen. Laws § 17-20-1: Voting by mail ballot.

The electors of this state who, for any of the reasons set forth in § 17-20-2, being otherwise qualified to vote, shall have the right to vote, in the manner and time provided by this chapter, in all general and special elections and primaries, including presidential primaries in this state for electors of president and vice-president of the United States, United States senators in Congress, representatives in Congress, general officers of the state, senators and representatives in the general assembly for the respective districts in which the elector is duly qualified to vote, and for any other officers whose names appear on the state ballot and for any city, town, ward, or district officers whose names appear on the respective city or town ballots in the ward or district of the city or town in which the elector is duly qualified to vote, and also to approve or reject any proposition of amendment to the Constitution or other propositions appearing on the state, city, or town ballot.