For a long time, Opus Inspection has used remote sensing to screen the cleanest and dirtiest vehicles circulating in the states of Colorado and Virginia (see our high-emitter programs). This activity, focused on the improvement of vehicle inspection programs, has allowed the collection of hundreds of millions of very valuable records.

The ICCT has compiled 60 million remote sensing emissions records from US Opus Inspection and the University of Denver to investigate the emissions of U.S. cars and trucks.