Örebro Prevention Program – This is a prevention program designed to decrease adolescents’ underage drinking and delinquency by increasing parents’ restrictive and prohibitory attitudes toward these behaviors. The program is rated Promising. Adolescents whose parents participated in the program had a statistically significant lower likelihood of having been drunk in the past month, lower alcohol use overall, and lower delinquency levels, compared with adolescents whose parents did not participate in the program.