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49 U.S.C. 31136, 31151, 31502; sec. 1041(b), Pub. L. 102-240, 105 Stat. 1914, 1993; secs. 5301 and 5524, Pub. L. 114-94, 129 Stat. 1312, 1543, 1560; and 49 CFR 1.87.
33 FR 19735, Dec. 25, 1968, unless otherwise noted.
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Subscribe to: 49 CFR 393.19
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Nomenclature changes to part 393 appear at 66 FR 49874, Oct. 1, 2001.
The hazard warning signal operating unit on each commercial motor vehicle shall operate independently of the ignition or equivalent switch, and when activated, cause all turn signals required by § 393.11 to flash simultaneously.
[70 FR 48046, Aug. 15, 2005]