Registering a part bred section D help
i own a part bred section D filly, she is crossed with standardbred, i need to get her passport done and i thought it would be nice to do her as a part bred section d and i have found out her sires details, he is registered with the welsh society and i have his details however doesnt have a stallion certificate, he is out of derwen desert express who i have seen pics of and is stunning and the dam is arawa st georges girl, have not found her yet.
how do i go about it? do i need to get belle blood tested or something
any help appreciated