This excerpt taken from the API 8-K filed Jan 13, 2010.
ARTICLE XXXXXIV FACSIMILES:
Landlord and Tenant agree that a facsimile transmission of any original document shall have the same effect as an original. Any signature required on an original shall be completed when a facsimile copy has been signed. The parties agree that signed facsimile copies of documents shall be appended to the originals thereof, integrated therewith and given full effect as if an original.