The “Parents Who Host, Lose The Most: Don’t be a party to teenage drinking” is public awareness campaign (2011, USA) developed by Drug-Free Action Alliance to educate parents about the health and safety risks of serving alcohol at teen parties and to increase awareness of and compliance with the Underage Drinking Laws.
https://www.drugfreeactionalliance.org/parents-who-host

Campaign was relaunched in April 2016 in Eau Claire County.
http://www.weau.com/home/headlines/Teen-drinking-prevention-campaign-lauches-377062251.html