Regulations last checked for updates: Apr 23, 2025

Title 49 - Transportation last revised: Mar 20, 2025
All TitlesTitle 49Chapter IIIPart 325Subpart G - Subpart G—Exhaust Systems and Tires
authority: 42 U.S.C. 4917; 49 U.S.C. 301; and 49 CFR 1.87
source: 40 FR 42437, Sept. 12, 1975, unless otherwise noted.
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