49 C.F.R. § 238.733
(a) Tier III trainsets shall comply with the interior fixture attachment strength requirements referenced in either of the following paragraphs:
(2) Section 6.1.4, “Security of furniture, equipment and features,” of GM/RT2100, provided that—
(b) The standards required in this section are incorporated by reference into this section 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 Federal Railroad Administration, Docket Clerk, 1200 New Jersey Avenue SE, Washington, DC and is available from the sources indicated below. 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 www.archives.gov/federal-register/cfr/ibr-locations.html.
(1) American Public Transportation Association, 1666 K Street NW, Washington, DC 20006, www.aptastandards.com.
(2) Rail Safety and Standards Board Ltd., Communications, RSSB, Block 2 Angel Square, 1 Torrens Street, London, England EC1V 1NY, www.rgsonline.co.uk.