47 CFR § 67.3 - Incorporation by Reference.
(a) Certain material is incorporated by reference into this part with the approval of the Director of the Federal Register under 5 U.S.C. 552(a) and 1 CFR part 51. All approved material is available for inspection at the Federal Communications Commission's Reference Information Center, located at the address of the FCC's main office indicated in 47 CFR 0.401(a), Tel: (202) 418-0270, and is available from the sources listed in this section. It is also available for inspection at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030 or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
(b) Internet Engineering Task Force (IETF), c/o Association Management Solutions, LLC (AMS) 5177 Brandin Court, Fremont, California 94538, phone (510) 492-4080, Web site at http://ietf.org or directly at https://www.ietf.org/rfc/rfc4103.txt.
(1) Request for Comments (RFC) 4103, Real-time Transport Protocol Payload for Text Conversation (2005), IBR approved for § 67.1.