Seung-Jae Choi appeals from the district court order affirming his convictions for driving while intoxicated, 32 C.F.R. §§ 234.17(c)(l)(ii) & 234.19(a), driving while under the influence of alcohol, 32 C.F.R. §§ 234.17(c)(1)© & 234.19(a), and two counts of failing to obey a clearly posted stop sign, 32 C.F.R. §§ 234.17(a) & 234.19(a), assimilating Va.Code Ann. § 46.2-830 (2002). On appeal, he argues that the court erred in imposing criminal penalties rather than civil penalties, that the Government failed to prove wilful violations, that the evidence was insufficient to support his conviction, and that the trial court erred in denying his motion to suppress and allowing the Government to introduce evidence of his prior alcohol-related convictions. We have reviewed the parties’ briefs, the joint appendix, and the lower court’s opinions and orders and find no reversible error. Accordingly, we affirm Choi’s convictions. We dispense with oral argument because the facts and legal *364 contentions are adequately presented in the materials before the court and argument would not aid the decisional process.

AFFIRMED