37 CFR 2.23 - Requirements for a TEAS RF application.
(a) A trademark, service mark, certification mark, collective membership mark, or collective trademark application for registration on the Principal or Supplemental Register under section 1 and/or section 44 of the Act will be entitled to a reduced filing fee under § 2.6(a)(1)(iii) if it is filed through TEAS and includes:
(1) An email address for correspondence; and
(2) An authorization for the Office to send correspondence concerning the application to the applicant or applicant's attorney by email.
(b) In addition to the filing requirements under paragraph (a) of this section, the applicant must:
(1) File the following communications through TEAS:
(i) Responses to Office actions (except notices of appeal under section 20 of the Trademark Act);
(ii) Requests to change the correspondence address and owner's address;
(iii) Appointments and/or revocations of power of attorney;
(iv) Appointments and/or revocations of domestic representative;
(v) Voluntary amendments;
(vi) Amendments to allege use under section 1(c) of the Act or statements of use under section 1(d) of the Act;
(vii) Requests for extensions of time to file a statement of use under section 1(d) of the Act; and
(viii) Requests to delete a section 1(b) basis.
(2) Maintain a valid email correspondence address, and continue to receive communications from the Office by email.
(c) If an application does not meet the requirements of paragraphs (a) and (b) of this section, the applicant must pay the processing fee required by § 2.6(a)(1)(v). The application will retain its original filing date, provided that when filed, the application met the filing date requirements of § 2.21.