R.I. Gen. Laws § 21-28-4.11: Second offenses.

(a) Any person convicted of a second offense under this chapter, except for violations of § 21-28-4.01(c)(2)(i), § 21-28-4.01(c)(2)(iii), § 21-28-4.01(c)(2)(iv), § 21-28-4.01(c)(2)(v), or § 21-28-4.01(c)(2)(vi), may be imprisoned for a term up to twice the term authorized, fined an amount up to twice that authorized, or both.

(b) For purposes of this section, an offense is considered a second offense if, prior to his or her conviction of the offense, the offender has at any time been convicted under this chapter, except for violations of § 21-28-4.01(c)(2)(i), § 21-28-4.01(c)(2)(iii), § 21-28-4.01(c)(2)(iv), § 21-28-4.01(c)(2)(v), or § 21-28-4.01(c)(2)(vi), or under any statute of the United States or of any state relating to narcotic drugs, marijuana, depressant, stimulant, or hallucinogenic drugs.