111.02(c) Location of Certificate
If the simple certificate of mailing format shown in TBMP § 111.02(b) is used, it may appear on the first page of the correspondence, if feasible. Otherwise, it should appear in its entirety on the last page of the correspondence to which it pertains. If the certificate is typed, and there is not enough room on the last page to type the certificate in its entirety, it should at least be started on the last page, so that only part of it continues over to another page. The simple certificate of mailing format should never be used by itself on a separate page at the end of the correspondence. If it is, and the page becomes detached from the rest of the submission, there will be no way of determining the identity of the correspondence to which it relates, and the benefit of the certificate will be lost.
In some cases, there may not be room for a certificate of mailing on a piece of correspondence. In such a case, the certificate may be typed on a separate sheet of paper securely attached to the correspondence. However, if the certificate is typed on a separate sheet of paper, it must include additional information, namely, a description of the nature of the correspondence to which it pertains, as well as the identity of the application, registration, or Office proceeding in connection with which the correspondence is being filed.
If there is any doubt concerning the identity of the correspondence to which a certificate of mailing on a separate sheet pertains, the certificate will not be accepted.