ADA - The Official Dart League of the US Military: Organized darts within military clubs and community centers.
American Dart Organization: Focusing on steel tip darts. Includes match results, current standings, youth news and contact information.
American Darters Association: Sanctioning body for a nationwide centrally controlled amateur dart league. Membership and championships information.
National Dart Association: Sanctioning body of electronic darting, dedicated to the standardization, recognition, promotion, and growth of competition worldwide. Overview, by-laws, rules, tournaments, and rankings.