Notwithstanding the provisions of § 46.2-498, whenever the driving record of a person who is at least eighteen years old but less than twenty years old shows that he has been convicted of (i) an offense for which demerit points have been assessed or are assessable under Article 19 (§ 46.2-489 et seq.) of this chapter or (ii) a violation of any provision of Article 12 (§ 46.2-1091 et seq.) or Article 13 (§ 46.2-1095 et seq.) of Chapter 10 of this title, the Commissioner shall direct such person to attend a driver improvement clinic.