https://www.siliconvalley.com/2023/06/23/federal-regulators-to-require-automatic-emergency-braking-on-heavy-trucks-and-buses/

The government will require heavy trucks and buses to include automatic emergency braking equipment within five years, the federal traffic safety agency said Thursday, estimating it will prevent nearly 20,000 crashes save at least 155 lives a year.

The announcement by the National Highway Traffic Safety Administration follows a similar move last month for all new passenger cars and light trucks. The actions represent the traffic safety agency’s latest efforts to regulate electronic systems that take on certain tasks that drivers themselves have normally handled. NHTSA has been reluctant in the past to impose such regulations, saying the technology would change during the time it took to enact new rules.