Let attendees know that if they leave, they can't come back.
Have plenty of food and non-alcohlic beverages.
Plan some activities such as music, games, movies, etc.
Let your neighbors know in advance there will be a party and that you will be there to supervise. Familiarize yourself with the noise ordinance in your area.
Limit the party access to a certain area of the house/property.
Have a plan for dealing with vehicles. Include parking information in your party invitation.
Call parents of any teen who arrives in possession of alcohol or under the influence. If you can't get in touch with the parents, keep them there or call the
police, if necessary. You can be civilly liable if you know they are intoxicated and you let them leave.
Secure all forms of alcohol, firearms and other potentially hazardous items in your home in a safe place.
Make regular and unobtrusive visits to the party area with sensitivity to teens' need for privacy and independence.
Invite some other parents to help chaperone if there will be a large number of teenagers.