CMS has instructed Medicare Administrative Contractors (MACs) to begin accepting electronic, digital and/or digitized signatures on requests for an appeal. Previously, MACs were only allowed to accept handwritten or electronic signatures. This new direction means that providers may now use typed and scanned signatures on the Redetermination Form. Valid signatures must still be legible, contain at least the entire first name and may not be reduced to initials. As required by CMS, all redetermination requests received without the appellant's signature are dismissed as incomplete requests.