¶1 In separate prosecutions, petitioners Scott Winebrenner and Jesus Quezada were each found guilty of driving under the influence (DUI) after their deferred prosecutions were revoked by the trial court. In both cases, the court declined to consider offenses committed after the current offense in determining the mandatory *Page 454 minimum sentence under RCW 46.61.5055.1 At issue is the meaning of "prior offenses" under the statute and whether a "prior offense" is one that occurs before the arrest for the current offense or before sentencing. Concluding that the statute is ambiguous and subject to two reasonable interpretations, we apply the rule of lenity and construe it in favor of the petitioners. We reverse the Court of Appeals.
FACTS AND PROCEDURAL HISTORYQuezada
¶2 Quezada was convicted of DUI in 2001.2 In 2002, he was again arrested for DUI and later entered into a deferred prosecution on that charge. In 2005, Quezada was again charged with DUI, which he pleaded to the lesser charge of reckless driving. Based on the 2005 conviction, the municipal court revoked Quezada's 2003 deferred prosecution and sentenced him for the underlying offense. The court rejected the city of Seattle's argument that the 2005 conviction was a prior offense for purposes of sentencing for the 2002 offense. It found that Quezada had one prior offense and sentenced him to 120 days of electronic home monitoring.
¶3 On appeal, the superior court affirmed that Quezada had only one prior offense for purposes of sentencing for the deferred prosecution.3 The Court of Appeals reversed, holding that the 2005 conviction for reckless driving should have been considered a prior offense when Quezada was sentenced for the 2003 offense. City of Seattle v. Quezada,142 Wn. App. 43, 52, 174 P.3d 129 (2007). *Page 455 Winebrenner
¶4 Winebrenner was arrested for DUI in 2001 and entered into a deferred prosecution. In 2005, Winebrenner was again arrested for DUI, though he later pleaded guilty to the lesser charge of reckless driving. The 2005 reckless driving conviction violated the conditions of the 2001 deferred prosecution. The municipal court revoked the deferred prosecution and proceeded to sentence Winebrenner for the 2001 offense. For purposes of sentencing, the court considered the 2001 charge a first offense and sentenced Winebrenner to the mandatory minimum term of imprisonment and 30 days of electronic home monitoring.
¶5 The city of Seattle appealed the sentence to the King County Superior Court, arguing that the 2001 DUI was not a first offense because the 2005 offense should have been considered a "prior offense" under RCW 46.61.5055(1). The superior court agreed, holding that for purposes of sentencing Winebrenner for his 2001 DUI, the 2005 reckless driving conviction was a "prior offense" and should have been included when determining the mandatory minimum sentence. The superior court also concluded that the deferred prosecution of the 2001 DUI itself should also have been included as a prior offense. It therefore found that Winebrenner had two prior offenses (one being the deferred prosecution) for purposes of sentencing for the 2001 DUI offense and remanded the case back to the trial court for resentencing.
¶6 Winebrenner appealed the superior court's decision, and the case was consolidated with Quezada's. The Court of Appeals agreed that for purposes of sentencing for the 2001 DUI offense, the 2005 conviction should have been considered a "prior offense," but that the deferred prosecution itself could not be considered. Quezada, 142 Wn. App. at 52-53. The court concluded that the 2001 charge was Winebrenner's second offense for sentencing purposes and upheld the decision of the superior court. Id. at 53. *Page 456 ANALYSIS ¶7 Questions of statutory interpretation are reviewed de novo. State v. Salavea, 151 Wn.2d 133, 140,86 P.3d 125 (2004). "The `plain meaning' of a statutory provision is to be discerned from the ordinary meaning of the language at issue, as well as from the context of the statute in which that provision is found, related provisions, and the statutory scheme as a whole." State v. Jacobs, 154 Wn.2d 596,600, 115 P.3d 281 (2005). If after examination of a statute we find that it is subject to more than one reasonable interpretation, the statute is ambiguous. Id. at 600-01. However, a statute is not ambiguous merely because more than one interpretation is conceivable. Agrilink Foods.Inc. v. Dep't of Revenue, 153 Wn.2d 392, 396,103 P.3d 1226 (2005) (citing State v. Hahn, 83 Wn. App. 825,831, 924 P.2d 392 (1996)).
¶8 RCW 46.61.5055 sets out a penalty schedule for persons convicted of certain alcohol related offenses, including DUI. The statute requires the court to sentence violators to increasingly severe minimum penalties based on the number of "prior offense [s]" an offender has "within seven years" of the current offense. RCW 46.61.5055(1). For example, an offender with a blood alcohol concentration (BAC) of at least 0.15 who has no prior offenses within seven years of the current offense must be sentenced to a minimum of 2 days' nondeferrable imprisonment and given a minimum $500 fine. RCW 46.61.5055(1)(b)(i)-(ii). An offender with a BAC of at least 0.15 and one prior offense within seven years must be sentenced to a minimum of 45 days' imprisonment, 90 days of home monitoring, and a minimum $750 fine. RCW 46.61.5055(2)(b)(i)-(ii). The schedule continues in that pattern for each offense, *Page 457 with multiple prior offenses increasing the minimum penalty the court must impose.4
¶9 The issue here is whether "prior offense" applies only to offenses that occurred before the current offense or whether "prior offense" encompasses all offenses the defendant has before sentencing. Put differently, we must decide whether "prior," as used in RCW 46.61.5055(1), means before the offense or before sentencing. "Prior" is not specifically defined in the statute but "prior offense" is. The statute lists eight specific offenses and dispositions that are considered prior offenses when determining a defendant's mandatory minimum sentence. For example, a prior offense may be a "conviction for a violation of RCW 46.61.502 or an equivalent local ordinance." RCW 46.61.5055(14)(a)(i). Or a prior offense may be a "deferred prosecution under chapter 10.05 RCW granted in a prosecution for a violation of RCW 46.61.502, 46.61.504, or an equivalent local ordinance." RCW 46.61.5055(14)(a)(vii). While these and other dispositions are specifically included, the statutory definition of "prior offense" does not include any temporal limit.
¶10 The petitioners argue that "prior offense" plainly means an offense that occurred before the offense for which they are being sentenced. To construe the statute differently, they argue, would create a scheme in which defendants may be sentenced twice for a second DUI offense rather than once for a first offense, once for a second offense, and so on. Winebrenner's Pet. for Review at 1-2. As petitioners point out, under the city's interpretation, both Winebrenner's and Quezada's earlier DUI offenses count as "prior offenses" for the later offenses, and the later offenses also count as "prior offenses" for the earlier offenses. Such a result, the petitioners contend, is "unlikely, absurd, [and] strained."Id. at 2.
¶11 Petitioners also argue that to construe the statute as requiring courts to consider offenses that occurred both *Page 458 before and after the current offense would render the word "prior" superfluous. As the petitioners correctly note, under such a reading the word "prior" would not in any way serve to modify "offense." Id. at 12. "Prior offense" and "offense" would have the same meaning. We presume the legislature does not use superfluous words. In re Recall ofPearsall-Stipek, 141 Wn.2d 756, 767, 10 P.3d 1034 (2000). Since the legislature did not specifically define "prior," the petitioners urge that it should be given its common meaning.
¶12 The city counters that while the legislature did not define "prior," it did define "prior offense [s]" and did not specify that the term was limited to offenses occurring before the current offense. It claims it would be "nonsense for the legislature to separately define the word `prior' when it defined and exclusively relied upon the specific term `prior offense'." Suppl. Br. of Resp't at 2. To extract one word from a defined term to introduce ambiguity, the city argues, should be rejected.
¶13 Instead, the city suggests that although the statutory definition of "prior offense" does not provide a temporal limit on which offenses must be counted to determine the mandatory minimum sentence, a temporal limitation can be found in the term "within seven years." The statute defines "within seven years" to mean "that the arrest for a prior offense occurred within seven years of the arrest for the current offense." RCW 46.61.5055(14)(b). The term "within" may mean any time before, during, or after a specified period. See Glenn v.Garrett, 84 S.W.2d 515, 516 (Tex. App. 1935). Thus, according to the city, sentencing courts may consider any offenses the defendant has been convicted of at the time of sentencing, provided the arrests occurred either seven years before or seven years after the arrest for the current offense. The city notes that had the legislature wished to limit prior offenses to those that occur only before the current offense, it could have done so by *Page 459 specifying that "within seven years" meant seven yearsbefore the current offense.5
¶14 The city also argues that when read in conjunction with RCW 46.61.513, it is clear that the legislature intended to include all convictions against the defendant at the time of sentencing regardless of whether they occurred before or after the current offense. RCW 46.61.513(1) states that before the court enters a deferred prosecution, dismisses a charge, or orders a sentence, "the court and prosecutor shall verify the defendant's criminal history." The criminal history must include all convictions current to within one working day. RCW 46.61.513(3). While the city is correct that the statute requires the court to "verify" convictions that have occurred subsequent to the deferred prosecution, nothing in the statute mandates that those verified convictions must be applied in setting a defendant's mandatory minimum sentence for the earlier offense. We are still required to determine whether prior offenses include convictions entered after the deferred prosecution. The statute is unhelpful in definitively answering this question.6 *Page 460
¶15 In a somewhat analogous case, this court has deter-mined that a sentencing scheme that would allow two convictions that occurred at different times to be treated as prior to each other would be "illogical." State v.Whitaker, 112 Wn.2d 341, 346, 771 P.2d 332 (1989). InWhitaker, the defendant entered into a deferred sentence in 1981 on a charge of negligent homicide.Id. at 342. Then, in 1986, after the adoption of the Sentencing Reform Act of 1981 (SRA), ch. 9.94A RCW, Whitaker was convicted of reckless driving, his deferred sentence was revoked, and he was sentenced for the 1981 offense.Whitaker, 112 Wn.2d at 342. Because the SRA required the court to consider a defendant's convictions that existedbefore the date of sentencing, the court counted the 1986 conviction as a prior offense in calculating Whitaker's offender score for the 1981 offense. Id. We held that the 1986 sentence should not have counted in calculating Whitaker's offender score for the 1981 charge because to hold otherwise would allow each offense to be treated as a prior conviction to the other. Id. at 346.
¶16 The city and the Court of Appeals dismissWhitaker because it dealt specifically with the SRA and was addressing a dilemma that arose due to "the overlap of two sentencing systems." Id. at 344. While the Court of Appeals concluded that "Whitaker provides no meaningful guidance for our analysis of RCW 46.61.5055,"Quezada, 142 Wn. App. at 51, we note that the same result that we found "illogical" in Whitaker will occur here if we adopt the Court of Appeals' reading of the statute. Since a deferred prosecution is considered a "prior offense" under the statute, whenever a defendant who is participating in that program is convicted on a later charge, each offense will be treated as a prior conviction to the other. While it is possible the legislature intended such a result when it enacted RCW 46.61.5055, it is not clear from the statutory language.
¶17 We recognize that both interpretations of the statute have merit. For example, Judge Mary Kay Becker of the *Page 461 Court of Appeals advanced a persuasive articulation of the city's position. In noting that before imposing a sentence for DUI, the sentencing court must verify the defendant's current criminal history, the Court of Appeals wrote:
Quezada, 142 Wn. App. at 48-49 (footnote omitted). However, King County Superior Court Judge Theresa B. Doyle also persuasively articulated the petitioner's contrary interpretation in her RALJ decision in Quezada's case:A "prior offense" for purposes of DUI sentencing is one of the convictions specified in former RCW 46.61.5055(12)(a) (2004), including DUI convictions and certain convictions resulting from an initial charge of DUI, such as Quezada's 2005 reckless driving conviction. See former RCW 46.61.5055(12)(a)(v). Under the circumstances, the legislature's definition of "prior offense" could not be clearer, and its application to the issues raised in these appeals leaves no room for further construction.
The legislature's definition of "within seven years" is equally clear. "Within seven years" means that "the arrest for a prior offense occurred within seven years of the arrest for the current offense." Former RCW 46.61.5055(12)(b). Because the court applies this definition at the time of sentencing, the plain meaning of the term "within seven years" encompasses the period both before and after the arrest date for the current offense.
The City's proposed construction of RCW 46.61.5055(12)(b) ignores the Legislature's use of the word "prior" to modify "offense". The dictionary definition of "prior" is "[p]receding in time or order:". The American Heritage Dictionary of the English Language (4th ed. 2004). Thus, a prior offense within seven years must mean that the arrest for the prior offense preceded in time the arrest for the current offense, and was within seven years of the current offense. Here, the defendant's arrest for the DUI/Reckless offense occurred in 2005 and therefore did not precede in time the 2002 arrest on the current offense. Accordingly, the 2005 DUI/Reckless offense was not a prior offense that occurred within seven years of the current offense. Hence, the trial court correctly determined that the defendant had one "prior offense" rather than two prior offenses.
Clerk's Papers (Quezada) at 58 (Decision on RALJ). *Page 462
¶18 Each of these interpretations of RCW 46.61.5055 is reasonable. Neither a plain reading of the statute, the statutory scheme as a whole, nor legislative history clearly establishes the legislature's purpose in using the word "prior" or the appropriate temporal limit for a "prior offense." We conclude that RCW 46.61.5055 is subject to more than one reasonable interpretation and therefore hold the statute is ambiguous.
¶19 If after applying rules of statutory construction we conclude that a statute is ambiguous, "the rule of lenity requires us to interpret the statute in favor of the defendant absent legislative intent to the contrary." Jacobs,154 Wn.2d at 601 (citing In re Post Sentencing Review ofCharles, 135 Wn.2d 239, 249, 955 P.2d 798 (1998)). The rule states that an ambiguous criminal statute cannot be interpreted to increase the penalty imposed. State v.Adlington-Kelly, 95 Wn.2d 917, 920-21, 631 P.2d 954 (1981). Because the legislature failed to specify whether prior offenses included offenses that occurred both before and after the defendant is sentenced on a deferred prosecution, we find the statute is ambiguous, apply the rule of lenity, and construe the statute in favor of the petitioners. Offenses that occur after the current offense must not be considered "prior offenses" for purposes of sentencing for DUI.
CONCLUSION ¶20 We conclude that both interpretations of the statute are reasonable. RCW 46.61.5055 is ambiguous as to whether it requires sentencing courts to consider offenses that occurred both before and after the offense for which the defendant is being sentenced. We hold under the rule of lenity that the statute must be construed in favor of the defendants. The Court of Appeals is reversed.
ALEXANDER, C.J., and SANDERS, OWENS, J.M. JOHNSON, and STEPHENS, JJ., concur.