Agency's executive order says emission credits allowing sale of engines run out Feb. 29.

Company sought to force the U.S. Environmental Protection Agency to recall 2010 model year engines using selective catalytic reduction.

Dalton Trucking and additional petitioners have said the new rule will increase transportation costs substantially.

Twenty dump trucks and 10 garbage trucks in several Missouri municipalities are among other heavy-duty vehicles that will be retrofitted to reduce diesel exhaust emissions, the U.S. Environmental Protection Agency ...

TR Auto Truck Plaza on Interstate 40 in Dandridge was closed and seized by a bank.

Letter to Obama says proposal would be an unnecessary and costly regulatory burden on truckers, given the improved record of truck safety.

Organization has approximately $20 million in funding to help small trucking companies and owner-operators upgrade or replace their trucks.

Cat allegedly shipped more than 590,000 highway and non-road diesel engines without correct emissions controls, according to the EPA.

Navistar alleges nitrogen oxide emissions skyrocket when drivers don't keep diesel exhaust fluid topped off.

EPA SmartWay Drayage Program is a goods movement initiative designed to clean up air in and around U.S. ports.