Our horses are exclusively registered with the Associação de Criadores de Cavalos Puro-Sangue Lusitano (APSL) through the US Lusitano Association (USLA). The APSL is the ruling organization for the pure blooded Lusitano. You can get more information about the Lusitano horse at the APSL website- https://www.cavalo-lusitano.com/en and more information about the US chapter organization- www.uslusitano.org
https://www.cavalo-lusitano.com/en/lusitano-horse
https://www.cavalo-lusitano.com/en/lusitano-horse/stud-book-rules
https://www.cavalo-lusitano.com/en/lusitano-horse/scientific-articles
And of course, here is the link to the public access studbook!
https://www.cavalo-lusitano.com/en/stud-book/public-access-to-the-stud-book