Along with the Application for Correction of Military Record, DD Form 149, you are allowed to submit a written “brief” to the Board for Correction of Military (or Naval) Records, explaining who you believe a records correction is warranted. Mr. Cassara will usually file a written submission, along with any supporting documents that justify the upgrade of your discharge.
Generally speaking, requests for a correction of military (or Naval) records is submitted in writing. The Board for Correction of Military (or Naval) occasionally, but rarely, grants a personal appearance.
Mr. Cassara has represented service members before all of the Boards for Correction of Military (and Naval) Records, and can advise you of the differences between them.