Section 79.100 - 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 . To enforce any edition other than that specified in this section, the FCC must publish a document in the FEDERAL REGISTER and the material must be available to the public. All approved incorporation by reference (IBR) material is available for inspection at the FCC and the National Archives and Records Administration (NARA). Contact the FCC through the Federal Communications Commission's Reference Information Center, phone: (202) 418-0270. For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations.html or email fr.inspection@nara.gov. The material may be obtained from the sources in the following paragraphs of this section.(b) Global Engineering Documents, 15 Inverness Way East, Englewood, CO 80112, (800) 854-7179, or at http://global.ihs.com:(1) EIA-708-B: "Digital Television (DTV) Closed Captioning," 1999, IBR approved for § 79.102 .(c) Society of Motion Picture & Television Engineers (SMPTE), 3 Barker Ave., 5th Floor, White Plains, NY 10601, or at the SMPTE Web site: http://www.smpte.org/standards/:(1) SMPTE ST 2052-1:2010: "Timed Text Format (SMPTE-TT)" 2010, IBR approved for §§ 79.4 and 79.103 . 77 FR 19518 , Mar. 30, 2012, as amended at 85 FR 64409 , Oct. 13, 2020; 88 FR 21449 , Apr. 10, 2023 As amended at 85 FR 64409, 10/13/2020; 88 FR 21449, 4/10/2023