Amends GS 20-179, which sets forth punishments for convictions for certain impaired driving convictions, to expand requirements for probation for Level One and Level Two punishments to include requiring the defendant to abstain from alcohol consumption and be monitored by a continuous alcohol monitoring system, of a type approved by the Division of Adult Correction of the Department of Public Safety, for a period of no less than 60 days. Allows a defendant monitored on an approved continuous alcohol monitoring system during the pretrial period to have up to 90 days of pretrial monitoring credited against the 90-day monitoring requirement for probation under Level Two punishment.

Makes conforming and clarifying changes to subsections (h1) and (r) concerning conditions for probation. 

Makes organizational and technical changes. 

Effective December 1, 2017, and applies to offenses committed on or after that date.