DS thought the "Authorization Card" refers to the "Certificate of Authorization" that was part of the "Instructions For Applicants Offered Admission". The document states: "I hereby appoint the Treasurer, United States Military Academy and his/her successor or designee, as custodian and trustee of the initial deposit made by me..."
DS sent an email to RC to determine if this is the correct document that is required to fulfill the "Authorization Code" request on the Portal.
Will let everyone know once DS hears back from RC.