This article is from the Complete List of Dog-Related Acronyms, posted to rec.pets.dogs newsgroup. Maintained by Cindy Tittle Moore with numerous contributions by others.
Herding Capable Tested
Herding Trial Dog, first level
Herding Trial Dog, second level
Herding Trial Dog, third level
Junior Herd Dog
* The official AHBA HTD title can have up to 4 suffixes: -d for ducks; -s for sheep; -g for goats; or -c for cattle. The title will always have at least one of these suffixes.