On January 8, 2024, the U.S. District Court for the Western District of Michigan sentenced Dustin Rhine to 12 months of probation, a $2,000 fine, and a $100 special assessment. Rhine had previously pleaded guilty to conspiracy to violate the Clean Air Act. In April 2023, Rhine was charged along with 10 other individuals and 3 companies for their involvement in a scheme to disable the emissions controls on hundreds of semi-trucks. Tampering with or removing emissions controls can drastically increase the emissions of nitrogen oxides, particulate matter, carbon monoxide, and non-methane hydrocarbons found in vehicle exhaust.
DOT-OIG conducted this investigation with the Environmental Protection Agency, Criminal Investigation Division; Homeland Security Investigations; and the Michigan Department of Natural Resources, Environmental Investigation Section.