In 1981, a breed registry, called the American Welara Pony Registry, was created in the US in order to develop and promote the breed. A studbook also began to be published, and pedigrees of Welaras were collected and preserved. Only Welsh and Arabian blood is allowed for purebreds, and all registered ponies must have at least 1/8 and no more than 7/8 blood from each breed. As of 2005, the registry claimed slightly over 1,500 ponies registered in North America, with around 100 new foals registered annually. Welara Sport Ponies may also be registered – these are ponies at least 50 percent Welara but with blood from other breeds, often the Thoroughbred. The association also registers pureblood Welsh and Arabian foundation stock.