Is a warning device required in a Commercial Motor Vehicle (CMV) with a single hydraulic brake system which uses the driveline parking brake as the emergency brake system?
Section § 393.51: Warning signals, air pressure and vacuum gauges.
Guidance Q&AQuestion 4: Is a warning device required in a Commercial Motor Vehicle (CMV) with a single hydraulic brake system which uses the driveline parking brake as the emergency brake system?
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