The Last Call Project conducted a 3-year social marketing campaign in Seattle neighborhoods to reduce impaired driving deaths and injuries. They focused on drinkers ages 21-34 in Pioneer Square, Pike/Pine Corridor, Belltown, Ballard, and Fremont using street teams, point-of-sale messaging, special events, advertising, and a safe ride home program. Evaluation of the results from random digit dialing surveys, crash data, arrest records, and street surveys found the campaign achieved its goals of encouraging safer transportation options for drinkers.