R.I. Gen. Laws § 31-37-16.3: Additives.

Every retail dealer shall display and maintain on at least two (2) sides of each pump or other dispensing device from which motor fuel is sold at least one sign in a conspicuous place stating the maximum percent of alcohol, greater than one percent (1%) contained in the product to the nearest whole percent. In the case of methanol blends, the maximum percentage of co-solvent contained in the motor fuel must be stated separately.