Federal regulators said they have exceeded their goal of recruiting more than 225 truck driver volunteers to participate in an hours-of-service 34-hour restart study.

An appeals court has dismissed a legal challenge to federal greenhouse-gas emissions and fuel-efficiency standards for medium and heavy trucks by a California construction company and the California Construction Trucking Association.

ALEXANDRIA, Va. — Though more than halfway through its scheduled meetings to standardize training regulations for entry-level truck drivers, a Federal Motor Carrier Safety Administration advisory panel remained divided on whether driver training schools should self-certify their programs or be certified by a third party.

A mandate that would require speed-limiting devices on large trucks is not supported by solid science, the Owner-Operator Independent Drivers Association told federal regulators.

Indiana Gov. Mike Pence and the Indiana Department of Health are seeking assistance from the state trucking association and travel plazas to help curb an HIV outbreak in southeastern Indiana along the Interstate 65 and I-465 corridor between Louisville and Indianapolis.

The Federal Motor Carrier Safety Administration has issued a request for public comment on its exploratory initiative to find ways to reward carriers who deploy safety technologies or implement safety programs that exceed regulatory requirements.

Federal regulators are seeking additional volunteer truck drivers for a 34-hour restart study due to a shortage of drivers from various industry segments.

The Federal Motor Carrier Safety Administration is delaying publication of its proposed safety fitness-determination rule by another month, until Aug. 17, the agency said in its April significant rulemakings report.

The Department of Transportation has issued a final rule outlining requirements for drug testing chain of custody of urine samples when using electronic forms.