All truckers entering the United States from Canada will have to pay $5.25 per trip, or purchase an annual decal for $105, beginning Nov. 24 under a new rule the U.S. Department of Agriculture said would help pay for a staff of special border inspectors.

In the five years since terrorists used airplanes to attack some of the country’s most recognizable landmarks, the United States has moved to secure all modes of transportation — including trucking — to prevent another attack.

The Environmental Protection Agency said it would issue guidelines for urea-injection systems on diesel engines as early as next month.

Tighter federal emissions standards for railroad locomotives, expected to be proposed late this year, would increase the cost of rail equipment, rail and diesel representatives said.

Trucking executives said they anticipate a shortage of tank truck capacity in the coming months, as demand for ethanol and ultra-low-sulfur-diesel fuel grows, while the Government Accountability Office said it was about to begin a study of the nation’s renewable-fuel infrastructure.

The Environmental Protection Agency said it is planning to target locomotive pollution emissions with a plan that could have as dramatic an effect on railroads as the agency’s past regulations have had on the trucking industry.

The Department of Homeland Security said the program that would require port transportation workers to register for security clearance has “significant vulnerabilities” and could be delayed if the problems are not corrected.

Canadian trucking officials said federal and provincial governments should not mandate biodiesel fuel until they prove the soy-based fuel blends will not harm 2007 engines.

any of the nation’s top trucking and logistics companies said they would bid this week for what is expected to be one of the largest third-party logistics contracts ever awarded to become the sole transportation coordinator for the Department of Defense. br clear="all">

A shortage of ultra-low-sulfur kerosene is expected to drive up the price of fuel for truckers in cold climates this winter, fuel refiners and fleet officials said.