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The National Transportation Safety Board has refused to reconsider its investigation of a fatal 1997 accident in Yonkers, N.Y., one often cited in support of stricter wetlines regulations on tank trucks.

A university sleep study cited by federal regulators in a proposed hours-of-service rule is “insufficient” to justify changing the rule’s 34-hour restart provision, according to American Trucking Associations.

ATLANTA — The Federal Motor Carrier Safety Administration will withdraw its rule requiring motor carriers with serious hours-of-service compliance violations to install electronic logging devices June 1, 2012, Administrator Anne Ferro said last week.

GRAPEVINE, Texas — One of the most effective ways for motor carriers to have more effect on the federal rulemaking process is to collaborate with agencies on research that yields valuable data, officials said.

As federal regulators worked behind closed doors late last week to meet a court deadline for posting a final hours-of-service rule, trucking industry stakeholders and members of Congress stepped up the level of public debate.

GRAPEVINE, Texas — The Federal Motor Carrier Safety Administration’s top official said the agency is working feverishly to complete a controversial final hours-of-service rule, but trucking executives predicted last week that FMCSA won’t finish by an Oct. 28 deadline set by a U.S. court.

GRAPEVINE, Texas — American Trucking Associations and the Truckload Carriers Association last week created a united front in the industry’s drive to raise truck weight limits by endorsing both an 88,000-pound limit for 5-axle tractor-trailers and a 97,000-pound limit for 6-axle configurations.

Twenty deaf or hard-of-hearing people are being considered for exemptions from a federal regulation setting minimum hearing requirements for commercial drivers, the first exemption applications to be considered in more than two decades, the Federal Motor Carrier Safety Administration said.

The Teamsters union and highway safety advocates have asked President Obama to “expeditiously more forward” on the new hours of service rule proposed by the Federal Motor Carrier Safety Administration.

The National Tank Truck Carriers has asked the U.S. transportation secretary to stop the rulemaking process on two cargo-tank regulations it said are not needed and “would actually harm the safe transportation of hazardous materials.”