This case concerns tampering with emission control systems on EPA-certified motor vehicles between January 1, 2018 and January 27, 2021. EPA has determined that these acts are in violation of Clean Air Act (CAA), Section 203(a)(3), 42 U.S.C. 7522(a)(3). The violations involve the deletion of the diesel emissions fluid systems. On November 10, 2021, Rising Son Transport agreed to an Expedited Settlement Agreement (ESA) to resolve the CAA violations. Under the agreement, Rising Son Transport will pay a civil penalty of $4,876 and must return all affected vehicles to EPA certified configuration. This action supports the National Compliance Initiative for Stopping After Market Defeat Devices.