U.S. Issues Electronic Stability Control Mandate for Trucks
WASHINGTON, D.C. -- The U.S. Transportation Department's National Highway Traffic Safety Administration (NHTSA) said on Wednesday it has finalized rules requiring electronic stability control (ESC) systems on new commercial trucks and large buses. The regulations require the systems on Class 6-8 trucks plus large buses exceeding 26,000 pounds in gross weight. Compliance will be evaluated using a "j-turn" test that replicates a curved highway off-ramp. The rules will take effect for most heavy trucks two years from publication of the regulations while some of the largest buses will have longer to comply. Canada is expected to adopt similar regulations.