The National Highway Traffic Safety Administration and Federal Motor Carrier Safety Administration have announced a joint proposed rule that would require heavy trucks to have automatic emergency braking systems aimed at mitigating the frequency and severity of rear-end crashes. The proposal, issued June 22 in response to petitions granted in 2015 to several safety groups and a congressional mandate under the Bipartisan Infrastructure Law, also would require that vehicles weighing more than 10,000 pounds have an electronic stability control system to work in unison with the AEB system.\nLearn more about your ad choices. Visit podcastchoices.com/adchoices