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Some trucking companies may stop offering health insurance plans as President Obama’s health-care overhaul takes effect, some experts said, citing the increasing costs of insurance compared with the penalty for not offering plans.

Navistar International Corp. scheduled a conference call late last week with stock analysts, saying it would provide an “operational update” as rumors swirled about the truck manufacturer’s inability so far to offer a heavy-duty engine that can meet federal emissions standards without using credits built up with the Environmental Protection Agency.

The produce shipping season is in full swing this year and affected by unpredictable weather patterns that have created shipping peaks in parts of the South and Pacific Northwest and weaker-than-usual demand in California, experts said.

Members of Congress have been boasting that the new highway bill they passed will create as many as 3 million jobs, including construction workers, highway engineers, manufacturing and truck drivers.

The House approved a bill on June 29 that would block any federal mandate requiring the use of electronic onboard recorders on vehicles, including a regulation included in the highway funding legislation President Obama was expected to sign late last week.

Retail diesel prices declined for a 12th straight week, dipping 3 cents a gallon to $3.648, the Department of Energy reported, but a spike in crude oil prices could signal an end to the downturn.

President Obama was scheduled to sign into law late last week a two-year, $105 billion transportation funding bill that will allow more tolling of interstate highways and create a national freight highway network.

An index of the U.S. economy’s service sector declined in June to the slowest pace in almost a year and a half, the Institute for Supply Management said Thursday.

FedEx Corp. said it completed its acquisition of Brazilian logistics firm Rapidão Cometa Logística e Transportes S.A.