The International Stud Book Committee

Welcome to the website of the International Stud Book Committee, the body which establishes the standards by which all Thoroughbred Stud Books agree to operate. The ISBC came into being in 1976 (originally as the “International Stud Book Conference”) and has continued to meet each year since then to discuss matters of global Thoroughbred Stud Book operation.

ISBC Mission

“The mission of the ISBC is to develop and promote the highest standards of Stud Book operation to safeguard the integrity of the Thoroughbred breed.”

What We Do

of Operation

Continually monitor, review and improve standards for operating and maintaining a Thoroughbred Stud Book through the Requirements and Guidelines for Gaining and Maintaining Approval as a Thoroughbred Stud Book and the relevant Articles of the IABRW


Monitor, review and improve standards for breeding, identification and international movement of Thoroughbred horses to facilitate the international trade of Thoroughbreds for breeding and competition


Ensure awareness of the use of future technologies (e.g. gene-doping, gene-therapy) and their potential effects on the integrity of the Thoroughbred, and to determine guidelines for their application

Stud Books

Work closely with emerging Stud Book Authorities to ensure that they meet the required standards of Stud Book procedures for ISBC Approval as a Thoroughbred Stud Book


Build stronger relationships between Stud Book communities and between all Approved Stud Books worldwide

Publication of
Foal Crop Data

Encourage the timely and accurate publication of annual Thoroughbred foal crop records and to ensure circulation to all Approved Stud Books worldwide

Sharing of
Statistical Information

Collate and disseminate statistical information on worldwide Thoroughbred breeding

Stud Book
Compliance Visits

Endeavour to complete a Compliance Liaison visit for each Approved Stud Book worldwide

Follow us on Twitter

In The News

  • Thoroughbred Daily News
  • Owner Breeder
- The TDN

Chattel charged through late to spring a double-digit upset in the Friday afternoon feature at Sarat [read more]

- T. D. Thornton

The first race on July 25 at Assiniboia Downs stood out like no other at the Winnipeg track this sea [read more]

- The TDN

Awards will be presented this fall by the Thoroughbred Aftercare Alliance to the highest-placing TAA [read more]

- Zoe Vicarage

The breeders, stallions and studs who shone at the glorious five-day meeting The post Goodwood breed [read more]

- Zoe Vicarage

Jockey had his ten-day ban reduced to six days by an independent disciplinary panel on Tuesday The p [read more]

- Staff writer

Oliver Brown will donate 5% of profits from its Royal Ascot collection to the IJF The post British t [read more]

For more information on the International Stud Book Committee or to reach the ISBC Secretariat please contact Lucy Rose, ISBC Secretary General, on