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WASHINGTON — Nine railroads have demonstrated little progress with installing an automatic braking system, jeopardizing their chances to qualify for a Dec. 31 deadline extension to implement the system, the country’s top railroad regulator told a Senate panel Oct. 3.

The Federal Motor Carrier Safety Administration announced that it is accepting public comment on a petition American Trucking Associations recently filed on California’s meal-and-rest-break rules.

The annualized rate of driver turnover at large truckload fleets in the second quarter jumped 4 percentage points year-over-year to 98%, according to American Trucking Associations’ Trucking Activity Report.

An earthen dam in Arizona’s southern desert could fail because the lake behind it is swollen with storm runoff, and more flooding caused by rain from the remnants of Tropical Storm Rosa is possible elsewhere in the state.

The Federal Motor Carrier Safety Administration will host another public listening session to discuss potential changes to its hours-of-service rules for commercial motor vehicle operators.

TRAVERSE CITY, Mich. — Michigan Gov. Rick Snyder’s administration and Canadian pipeline giant Enbridge have agreed to replace twin 65-year-old crude oil pipes in a channel linking two of the Great Lakes with another that would run through a tunnel far below the lake bed.

A $4.6 billion shale gas pipeline that already has been delayed by about a year is facing another setback after a court vacated a key permit.

The New York State Department of Transportation will retain $14 million in federal funding after reaching a compromise with the Federal Highway Administration over the large blue tourism signs that line the state’s highways.

Truckers who operate in the maquiladora business are the newest participants in the Arizona Department of Transportation’s truck safety improvement program.