Dec. 4, 2018— Key U.S. senators are making a last-ditch effort to win approval of a bill to speed the use of self-driving cars without human controls, reported Reuters.

Staff for Republican Senator John Thune and Democratic Senator Gary Peters circulated a draft of a revised bill aimed at breaking a legislative stalemate, according to the report.

The U.S. House unanimously approved a measure in Sept. 2017, but it has been stalled in the Senate for over a year. Automakers and congressional aides concede they face tough odds of getting approval in the final days before the current Congress adjourns.

A key sticking point has been whether the measure would limit the ability of companies to compel binding arbitration for consumers using autonomous vehicles. The revised draft would require manufacturers to validate that self-driving cars can detect all road users - including pedestrians, bicyclists and motorcyclists