The U.S. Department of Transportation's NHTSA (National Highway Traffic Safety Administration) unit has decided not to pursue a rule that would require automatic reversal systems (ARS) for power windows, and it has re-opened the comment period for its proposal to require an expanded field of view for all vehicles weighing 10,000 lb or less. In 2009, NHTSA proposed a rule designed to prevent children and others from being injured by windows that close with one touch. After reviewing the data and receiving comments from vehicle manufacturer associations, suppliers, safety advocacy organizations, members of Congress, and individuals, the agency was unable to determine if the costs would be reasonable, given the possible benefits. The rulemaking has been terminated. Regarding field of view, a proposed rule specifies an area behind the vehicle that the driver must be able to see when the vehicle is in reverse. Rear-mounted cameras and in-vehicle display screens are currently the only way to achieve this. The purpose is to help prevent injuries and deaths caused when drivers accidentally back over a person. The comment period will be open until April 18, and the agency will hold a public hearing concerning the proposed rule on March 23 in Washington, DC.