(a)Establishing the correspondent. The Office will send correspondence as follows: (1) If an attorney is not recognized as a representative pursuant to § 2.17(b)(1) , the Office will send correspondence to the applicant, registrant, or party to the proceeding. (2) If an attorney is recognized as a representative pursuant to § 2.17(b)(1) , the Office will correspond only with that attorney, except as set forth in paragraphs (a)(2)(i) through (iv) of this section. A request to change the correspondence