26. No deed or document binds the institute unless it is signed by the chair of the board of directors, the president and chief executive officer of the institute or a member of the personnel, and, in the case of such a member, only to the extent determined by by-law of the institute.
The institute may, on the conditions it determines, allow a required signature to be affixed by means of an automatic device to the documents it determines, or a facsimile of a signature to be engraved, lithographed or printed on them. However, the facsimile has the same force as the signature itself only if the document is countersigned by a person authorized by the chair of the board or the president and chief executive officer.