Jags Pro Truck Shop, Inc. (Jags) knowingly removed and/or rendered inoperative devices or elements of design installed in or on motor vehicles or motor vehicle engines in compliance with the CAA by installing or modifying software on ECMs to allow the motor vehicles to operate without EGR/CGI, DOC, DPF, and/or SCR systems, and by installing parts or components that removed and/or bypassed EGR/CGI, DPF, and/or SCR systems in violation of Section 203(a)(3)(A) of the CAA, 42 U.S.C. ? 7522(a)(3)(A). ODP sold, offered to sell, and installed parts aftermarket defeat devices intended for use with, or as part of, a motor vehicle or motor vehicle engine, where a principal effect of the part or component was to bypass, defeat or render inoperative devices and elements of design that control emissions, such as the engine fueling strategy, EGR/CGI, DOC, DPF, SCR, OBD systems, installed on or in a motor vehicle or motor vehicle engine in compliance with the CAA. Jags knew or should have known that such parts or components being offered for sale or installed for such use or put to such use in violation of Section 203(a)(3)(B) of the CAA, 42 U.S.C. ? 7522(a)(3)(B). This CAFO requires Jags to pay a penalty of $25,664 over a payment plan as provided by their ATP analysis and resolves the FOV issued to the respondent on March 12, 2020.