FMCSA Extends Comment Deadline On Controversial Speed Limiter Proposal For Commercial Motor Vehicles


The Federal Motor Carrier Safety Administration (FMCSA) announced an extension in the comment period for a proposed rulemaking that would require speed limiters for commercial motor vehicles (CMVs) weighing over 26,000 pounds and operated in interstate commerce.

The extension was granted due to stakeholder concern over the short 30-day comment period initially set for the proposed rule.

EMA supported the extension based on the potential impact the proposal would have on energy marketers with transportation operations.

The FMCSA, in conjunction with the National Highway Traffic Safety Administration, first proposed a speed limiter rule back on September 7, 2016 that was never acted upon. That rule would have required speed limiters on newly manufactured CMVs.

The FMCSA now says it intends to issue a supplemental proposed rulemaking that would require motor carriers to retrofit CMVs manufactured after 2003 with speed limiters.

According to the FMCSA, CMVs manufactured after this date are equipped with electronic engine control units (ECUs) capable of governing maximum vehicle speed.

Motor carriers would be required to retrofit ECUs by reprograming them for use as a speed limiter set at a maximum speed that will be determined by the FMCSA in a final rulemaking.

As in the previous proposed rule, the new FMCSA proposal would apply to CMVs over 26,000 pounds operating in interstate commerce.

The proposed rule would also require motor carriers to maintain the ECU limit for the service life of the vehicle.

The FMCSA proposal has already garnered 12,000 public comments on the proposal, the overwhelming majority of which are opposed to speed limiters.

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