National Prevention Week is an annual health observance dedicated to increasing public awareness of, and action around, mental and/or substance use disorders. SAMHSA’s National Prevention Week took place May 12 through 18, 2019. Each year around this observance, communities and organizations across the country come together to raise awareness about the importance of substance use prevention and positive mental health. Watch Dr. McCance-Katz's NPW 2019 kick-off video (3 minutes). Learn more about National Prevention Week.