American Driving Society - dressage tests, rule book, national event calendar & omnibus, webinars, nationwide trail guide

Carriage Association of America - Driver Proficiency Program & syllabi, Sporting Day of Traditional Driving rules, nationwide directory of goods and services, bookstore

Colorado Draft Horse Association

Colorado Horse Council

North American Saddle Mule Association

Rocky Mountain Carriage Club

Rocky Mountain Long Ears Association

Rocky Mountain Miniature Horse Club

updated 2/2016