An anonymous reader quotes a report from Reuters: The U.S. Senate Commerce Committee on Wednesday unanimously approved a bill to speed self-driving cars to market without human controls and bar states from imposing regulatory road blocks. The bill still must be approved by the full Senate. The U.S. House passed a similar version last month unanimously. General Motors Co, Alphabet Inc, Ford Motor Co and others have lobbied for the landmark legislation. Despite some complaints from Republicans, the Senate bill does not speed approval of self-driving technology for large commercial trucks after labor unions raised safety and employment concerns. The measure, the first significant federal legislation aimed at speeding self-driving cars to market, would allow automakers to win exemptions from current safety rules that prohibit vehicles without human controls. States could still set rules on registration, licensing, liability, insurance and safety inspections, but not performance standards.