Oregon.gov ODA Animal Health and Identification
Current import and export information for equines

USEF Rule Book
The most up to date USEF rule book

OHSET Rules and Regulations
Oregon High School Equestrian Team rules and regulations

Oregon 4-H Contest Guide
4-H rules and regulations

Oregon Dressage Society

Oregon Hunter Jumper Association

US Eventing Association Area VII

Oregon Quarter Horse Association

Oregon Reining Horse Association