Nett Technologies Inc.’s BlueMAX 300D Selective Catalytic Reduction (SCR) System reduces nitrogen oxides (NOx) emissions by at least 80% from medium- and heavy-duty diesel engines between 75 and 560 kW (100-750 hp) in portable and stationary applications like diesel generator sets, pumps and compressors. The system also has the added benefit of reducing criteria emissions of carbon monoxide (CO) and hydrocarbons (HC) by at least 90% and particulate matter (PM) by at least 25%. This product is especially well suited for the known ozone nonattainment areas where controlling NOx will help individual states to adopt appropriate state implementation plans (SIPs) under the Clean Air Act. The installation is made simple and efficient due to a preassembled modular kit that can be lifted into place by a forklift onto the stationary engine, providing easy access and maintenance.