16 CFR § 1228.2 - Requirements for sling carriers.
(a) Except as provided in paragraph (b) of this section, each sling carrier must comply with all applicable provisions of ASTM F2907-15, Standard Consumer Safety Specification for Sling Carriers, approved on October 15, 2015. The Director of the Federal Register approves this incorporation by reference in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. You may obtain a copy from ASTM International, 100 Bar Harbor Drive, P.O. Box 0700, West Conshohocken, PA 19428; http://www.astm.org/cpsc.htm. You may inspect a copy at the Office of the Secretary, U.S. Consumer Product Safety Commission, Room 820, 4330 East West Highway, Bethesda, MD 20814, telephone 301-504-7923, or 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_federalregulations/ibr_locations.html.
(b) In addition to complying with section 5.7.2 of ASTM F2907-15, comply with the following:
(1) 5.7.3 Warning labels that are attached to the fabric with seams shall remain in contact with the fabric around the entire perimeter of the label, when the sling is in all manufacturer recommended use positions.