American Kennel Club Titles (AKC)
Conformation:
CH  before the dogs name = AKC Champion in conformation
Field:
JH after the dog's name = AKC Junior Hunter earned in Hunt Test Performance Event
SH after the dog's name = AKC Senior Hunter earned in Hunt Test Performance Event
MH after the dog's name = AKC Master Hunter earned in Hunt Test Performance Event
Obedience:
CD after the dog's name = AKC Companion Dog earned in Obedience Performance Event
CDX after the dog's name = AKC Companion Dog Excellent earned in Obedience Performance Event

CGC after the dog's name = AKC Canine Good Citizen

TDI= Therapy Dog International

North American Hunter Retriever Association (NAHRA)
SR before the dog's name = NAHRA Started Retriever earned in Field Test Performance Event
WR before the dog's name= NAHRA Working Retriever earned in Field Test Performance Event

American Chesapeake Club (ACC)  Working Certificates
WD after the dog's name = Working Dog earned in Field Test Performance Event
WDX after the dog's name = Working Dog Excellent earned in Field Test Performance Event
WDQ after the dog's name = Working Dog Quailified earned in Field Test Performance Event


Please go to Links for detailed information on these organizations