Approximately 46% of past-year cannabis users in Canada aged of cannabis use on various 15 and older reported using cannabis two or fewer times during the three aspects of human functioning and months prior to the survey. [...] Other reports in the series present the effects of chronic A growing body of evidence suggests that cannabis use may negatively cannabis use on neurocognitive impact several aspects of people’s lives, including mental and physical functioning and mental health, health, cognitive functioning, ability to drive a motor vehicle, and pre- maternal cannabis use during and postnatal development among off [...] In this report—the third in pregnancy, and the respiratory a series reviewing the effects of cannabis use on various aspects of human effects of cannabis use. [...] The timely to review the evidence On July 2, 2008, the Tackling Violent Crime Act average age of those who drove on the prevalence of cannabis- (Bill C-2; Government of Canada, 2008) was after cannabis use was 28 years— impaired driving, the impact of enacted. [...] Performance The Risk of Collision after Using Cannabis Experimental studies have assessed the nature and extent of the effects of cannabis on a wide variety of cognitive Several studies have examined the risk of crash and motor tasks (e.g., Ashton, 2001; Berghaus & involvement associated with cannabis use by comparing Guo, 1995; Ramaekers, Robbe & O’Hanlon, 2000).