Advanced science.  Applied technology.



As part of our extensive exhaust emissions and aftertreatment research and development activities, we offer certification and audit testing services. Homologation programs are primarily heavy-duty on-highway and non-road diesel, gasoline, and alternatively fueled engines to conformance with applicable EPA, CARB, ECE EURO or other regulatory requirements. Manufacturer self-audit and EPA Selective Enforcement Audit (SEA) support programs are also performed. In addition to engine evaluations, SwRI also provides emission reduction technology development on a wide range of engine types.