Titles Explained
Conformation Agility
CH - Conformation Champion NA - Novice Agility
Obedience NAJ - Novice Agility Jumpers
CD - Companion Dog (novice obedience) OA - Open Agility
CDX - Companion Dog Excellent (open obedience) OAJ - Open Agility Jumpers
UD - Utility Dog (utility obedience) AX - Excellent Agililty Jumpers
RN - Rally Novice AXJ - Excellent Agility
RA - Rally Advanced NAP - Novice Agility Preferred
RE - Rally Excellent NJP - Novice Agility Jumpers Preferred
Lure Coursing  
JC - Junior Courser Other
SC - Senior Courser DC - Dual Champion (AKC conformation and field champion)
FC(in front of name) - AKC Field Champion CGC - Canine Good Citizen
FCH (after name) - ASFA Field Champion

HIC - Herding Instinct Certificate

BIF - Best in Field HIT - High in Trial
  VC - Versatility Certificate (RRCUS title)
  VCX - Versatility Excellent Certificate (RRCUS title)
  TDI - Therapy Dog International
  ROM - Register of Merit (RRCUS title)
  TT - Temperament Tested