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WASHINGTON — Congress may link any change in truck size- and-weight limits in upcoming highway legislation to a new commercial vehicle-miles-traveled tax, Rep. Peter DeFazio (D-Ore.), chairman of the House Highway and Transit Subcommittee, said last week.

The Clackamas County, Ore., sheriff’s office is using high-tech cameras to catch truck drivers who don’t buckle up, the Oregonian newspaper reported Tuesday.

Cummins Inc., the maker of more than one third of North America’s heavy-duty truck engines, plans to invest another $100 million in Brazil during the next four years to meet higher demand in that country, Bloomberg reported.

A federal judge last week denied American Trucking Associations’ request for a preliminary injunction against controversial portions of emission-reduction programs at the California ports of Los Angeles and Long Beach.

Astronomic fuel prices are only part of the economic drag on trucking these days. Add the growing length of time on accounts receivables, more customer bankruptcies and the tightening of credit by suppliers and lenders, and it’s easy to see how carriers’ cash flow has ebbed.

Trucking-related highway fatalities fell again last year, to their lowest level in 15 years, according to data from the Department of Transportation.

A federal judge tentatively denied American Trucking Associations’ request for an injunction that would delay the start of concessionaire programs for drayage drivers at the Ports of Los Angeles and Long Beach.

U.S. economic activity, including trucking and freight transportation, was sluggish in July and August, according to a Federal Reserve report released Wednesday.

The July truck tonnage report offered mixed signals about the industry and the U.S. economy, as American Trucking Associations’ index rose 4.4% from weak results a year earlier but declined 0.3% from the June totals.