ATA Trap – ATA web site
FITASC Sporting, Automatic Trap 300 and FITASC Universal Trench events : FITASC web site
ICTSF (DTL Trap, English Sporting) : ICTSF web site
ISSF – Olympic Skeet, Olympic Trap and Olympic Double-Trap : ISSF web site
NSSA Skeet – NSSA/NSCA web site
