The Senate has unanimously approved the Pedestrian Safety Enhancement Act, which requires: For You to See the Details!
@TatWza

…minimum level of sound emitted from a motor vehicle that is necessary to provide blind and other pedestrians with the information needed to reasonably detect a nearby electric or hybrid vehicle operating at or below the cross-over speed. They haven’t Got the particulars together, but the will conduct a 48 month study for us to find out what’s the word…or noise if you will!