UPDATE: Two U.S senators, Johnny Isakson from Georgia and Chris Coons from Delaware, have proposed a bill to limit all heavy truck speeds to 65 miles per hour-- a move they say would save lives on highways across the U.S.

Some semi-truck drivers say mandating speeds across the board will only have negative impacts on the interstate.

"I just don't think it will work. I don't like it, a split speed limit-- I don't like it," semi-truck driver Vernon Nevels told Channel 3.
Vernon Nevels is no stranger to hauling thousands of pounds across the nation. He has sat behind the wheel of an 18-wheeler for 35 years. He says those who don't drive for a living won't understand how this bill could hurt truck drivers.

"Kind of sad really because the ones that are more than likely introducing the laws are not out here," said Nevels. Nevels says driving a load of this size is hard enough and a bill like this could only make the journey more unsafe. 
"It's dangerous, people trying to get around you and everything. A lot of people try and go around you cause they lose their patience," Nevels added. 

Many larger hauling companies already have this mandate in place. Emily Szink with Freight Waves says a bill like this will level the playing field between small and large carrying companies.

"These people right now are getting there in a certain amount of time because they are not being mandated to the 65 miles per hour," Szink told Channel 3.
Supporters of the bill say this could make the interstate safer. Others aren't so sure. 

"The jury is still out on whether or not this truly will cut down on accidents and the big picture is fatalities," said Szink.

Safety isn't the only concern for drivers.
"It's just the idea of getting caught up in traffic, that's the biggest thing about the slower speed limit," said Nevels. He says this isn't a one size fits all proposal.
"You run everyone at 65-- not all trucks are going to run the same, not all of them are going to pull the same. They're just not," stated Nevels.

Freight Waves says this bill has been introduced in front of Congress around 20 times since 2011. 

PREVIOUS STORY:  Two U.S. senators have introduced a bill that would electronically limit tractor-trailer speeds to 65 miles per hour, a move they say would save lives on the nation's highways.

Georgia Republican Johnny Isakson and Delaware Democrat Chris Coons introduced the measure Thursday. They say it would take the place of a proposed Transportation Department regulation that has languished in the federal bureaucracy.

The bill would require all new trucks to have speed limiter software activated. It would also be extended to existing trucks that already have the technology. But it would not have to be retrofitted on rigs without the software.

The trucking industry says limiting truck speeds to 65 would create dangerous speed differentials with faster-traveling cars.

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