What happens on a second under 21 violation?

Under 18, a second § 31-27-2.5 violation suspends the license until age 21 under (d)(3). At 18 to 20, a second § 31-27-2.7 violation brings a fine of up to $250, a $300 assessment, up to 60 hours of community restitution, and a 3 to 6 month suspension.