R.I. Gen. Laws § 23-6-2: Spitting in public places.

No person shall spit upon the floor, or upon the sides, or upon any of the furnishings or equipment of any public conveyance, not devoted exclusively to smoking, or of any shop, store, hall, church, schoolhouse, railroad station, or other public building, or in the hallways of any private office building or upon the steps or platforms of the conveyance or buildings, or upon the sidewalk of any public highway in this state, except into suitable receptacles provided for that purpose. Any person violating any of the provisions of this section shall be fined not exceeding twenty dollars ($20.00) for each offense.