NHTSA will take a broad look at whether the electric carmaker’s driver-assistance system can increase the risk of crashes.
Automakers and technology companies say they are making driving safer, but verifying these claims is difficult.
The regulator questioned whether the Tesla chief executive had disclosed his stake at the right time.
Rates have jumped because of a surge in natural gas prices and could keep rising rapidly for years as utilities invest in electric grids.
The state is expected to write strict auto pollution standards designed to significantly speed the transition to electric vehicles and influence new federal rules.
For the first time since 2001, the government is setting more stringent limits on pollution from trucks, vans, and buses that harms human health.
The electric carmaker disclosed the new legal issues in its annual report to securities regulators, which was made public on Monday.
Beijing gave CATL lavish subsidies, a captive market of buyers and soft regulatory treatment, helping it to control a crucial technology of the future.
While its C.E.O., Elon Musk, and the state’s conservative lawmakers share libertarian sensibilities, they differ greatly on climate change and renewable energy.
While its C.E.O., Elon Musk, and the state’s conservative lawmakers share libertarian sensibilities, they differ greatly on climate change and renewable energy.