R.I. Gen. Laws § 17-22-1: Commencement and continuance of tabulations.

The state board shall commence the counting, canvassing, and tabulating of all votes cast, including mail ballots, at eight o’clock (8:00) p.m. on any election day at which mail ballots may be cast and within twenty-four (24) hours after any other election or primary, and shall continue and complete the tabulation with all reasonable expedition by using an optical scan count system.