According to Jack Holzknecht in his "How to Audit for Compliance with the FACT Act" seminar, "The FCRA requires a financial institution to disclose all of the credit scores that were used in these transactions. For example, if two joint applicants apply for a mortgage loan to purchase a single-family-residence and the lender uses both credit scores, then both need to be disclosed. The statue specifically does not require more than one disclosure per loan; therefore, if multiple scores are used, all of them can be inclusded in one disclosure containing the Notice to the Home Loan Applicant.
I hope this helps.