Authority5 U.S.C. 552; 49 U.S.C. 5301 and 5334; 49 CFR 1.91. Link to an amendment published at 91 FR 22454, Apr. 27, 2026.Subpart D also issued under 42 U.S.C. 5141.
Source70 FR 67318, Nov. 4, 2005, as amended at 90 FR 28226, July 1, 2025, unless otherwise noted.