Dick Simon Trucking, West Valley City, UT, is equipping more than 1,600 of its fleet with Oregon Green Light transponders. The units are designed to allow trucks to identify themselves and weigh using sensors and scales in the highway. Trucks equipped with the transponders can travel past a weigh station at normal cruising speed, rather than pulling off the highway and lining up to weigh at static scales. The Green Light transponders are reportedly the same types used in the PrePass and Norpass mainline truck preclearance system in other states.