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U.S. lawmakers have applied a light touch in regulating robot cars. At the national level, the Trump administration has proclaimed that driverless-car guidelines should be “entirely voluntary” for automakers, and bills pending in Congress would clear the way to putting tens of thousands of autonomous cars on the road — orders of magnitude more than the few hundred in the country today — before federal safety regulations are set.

LOUISVILLE, Ky. — The federal mandate of electronic logging devices has been in effect since late last year, but some truckers still had lingering questions about the finer points of regulation just days before the deadline for stricter enforcement.

The three-month law enforcement grace period for trucks to be equipped with electronic logging devices is over. As of April 1, drivers caught without ELDs are due to be placed out of service for 10 hours, and may have points added to their Compliance, Safety, Accountability program scores, or could even be assessed a civil fine.

The American Road and Transportation Builders Association submitted a petition March 27 asking the U.S. Department of Transportation to repeal a rule regarding federal funding for patented safety products.

Arizona ordered Uber Technologies Inc. to stop operating autonomous vehicles on the state’s roads indefinitely after the death of a pedestrian there a week ago.

The companies and officials influencing the development of self-driving technology offered a wide variety of reactions to the death of a pedestrian struck by an Uber autonomous vehicle March 18.

LOUISVILLE, Ky. — For the second consecutive day, a meeting between truck drivers and federal regulators turned sour, with more than a dozen drivers yelling at regulatory officials attempting to have a peaceful presentation and question-and-answer session on hours of service and driver personal conveyance issues.

LOUISVILLE, Ky. — The proliferation of technology for small carriers and a heavy focus on driver recruitment were among the leading themes of the 2018 Mid-America Trucking Show, which went off with minimal disruption despite a major snowstorm prior to the annual event.