The U.S. Department of Transportation’s (DOT’s) National Highway Traffic Safety Administration (NHTSA) and Federal Motor Carrier Safety Administration (FMCSA) today announced a 30-day extension of the public comment period for a September 7, 2016, notice of proposed rulemaking, which would require all newly-manufactured U.S. trucks, buses and multipurpose passenger vehicles with a gross vehicle weight rating more than 26,000 pounds to be equipped with speed limiting devices. The new public comment deadline of December 7, 2016, will provide all interested parties sufficient opportunity to fully develop and submit comments and evidentiary materials to the agencies via www.regulations.gov.