49 C.F.R. § 561.4
The material listed in this section is incorporated by reference into this section with the approval of the Director of the Federal Register in accordance with 5 U.S.C. 522(a) and 1 CFR part 51. All approved incorporation by reference (IBR) material is available for inspection at the National Highway Traffic Safety Administration (NHTSA) or at the National Archives and Records Administration (NARA). Contact NHTSA at: 1200 New Jersey Avenue SE, Washington, DC 20590; (202) 366-2588; www.nhtsa.gov/about-nhtsa/electronic-reading-room. For information on the availability of this material at NARA, visit www.archives.gov/contact. The material may be obtained from the following paragraphs of this section.
(a) International Organization for Standardization (ISO), 1, ch. de la Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland; phone: + 41 22 749 01 11; fax: + 41 22 733 34 30; website: www.iso.org.