Following its investigation in the Las Vegas crash, the NTSB also asked 17 automakers, including BMW, Ford, General Motors, Honda and VW, to equip new vehicles with speed-assistance features.
The agency recommends that vehicles have a speed warning system at a minimum, but would likely support more robust action.
The NTSB has asked NHTSA to act on the adoption of ISA tech before. In 2017, the agency asked NHTSA to incentivize adoption of ISA through a New Car Assessment Program.