Any decision is issued by the examining division as a whole and not by an individual examiner. All members, therefore, sign the written decision irrespective of whether or not it was a unanimous one. If, exceptionally, one or more division members cannot sign the decision, one of the other members, normally the chair, may sign it on their behalf, subject to the conditions defined in E‑X, 2.3. A seal may replace the signature.[Rule 113; ]