BusinesstestCCJ Staff (CCJ)Mar 28, 2014 test test Add us as a preferred source on Google Related StoriesBusinessMichelin X ONE tops 2 million tires sold; new trailer tire introducedBusinessEaton inks deals with Paccar, VolvoBusinessElectronic logging device rule proposal published, comment period ends May 27Partner InsightsThe Weigh My Truck app from CAT Scale helps fleets save time and improve efficiency.Top StoriesAutonomousCalifornia sets rules for driverless truckingUnder the new framework, manufacturers must follow a tiered permitting process.Safety & ComplianceTexas AG launches probe into trucking schools over English proficiency, safety standardsTrucksHigh diesel prices create 'financial crisis' for fleets running older trucksSafety & ComplianceFeds reclassify marijuana, still banned for truckersFeatured SponsorThe Weigh My Truck app from CAT Scale helps fleets save time and improve efficiency.Get all the info on the top 250 trucking companies in AmericaView, sort and download the trucking industry’s most comprehensive ranking of for-hire carriers in North America, based on a blend of metrics including fleet size, annual revenue and number of drivers.White PapersThe Complete Tire LifecycleHow fleets maximize value from cradle to casing