Credit: LucidAs auto manufacturers ramp up production of autonomous vehicles, the US is revisiting some safety regulations that don't necessarily apply to driverless cars. As we discussed recently, there are several levels of autonomous driving, with the highest levels not needing much (or any) supervision from the driver. "Federal Motor Vehicle Safety Standards were written with human drivers and need to be updated for autonomous vehicles," said NHTSA Chief Counsel Peter Simshauser in a statement. Criteria related to the position of the transmission shift lever, for example, wouldn't necessarily make sense for an autonomous vehicle, or AV. Currently, the NHTSA allows auto makers to sell up to 2,500 vehicles per year that don't meet FMVSS requirements.