Engine Manufacturers Association

EMA sponsors scientific and technical research to improve truck and engine performance and reduce emissions, to develop safety and emissions measurement and test methods, to assure the improvement and compatibility of fuels, and to improve the overall safety and environmental performance of advanced truck and engine technologies.Through research, development, and advocacy, EMA members have successfully worked with government and regulatory agencies over the past 50 years to significantly reduce emissions and improve overall performance from internal combustion engines.

EMA maintains a series of committees organized along major product-lines, such as heavy-duty on-highway trucks and buses, nonroad mobile equipment, marine and locomotive engines, grounds care and utility equipment, stationary engines, and fuels. Each EMA committee is comprised of member company representatives and holds frequent meetings in order to carry out and facilitate EMA's work. In addition to committee meetings, EMA sponsors, participates and develops industry forums, workshops, and conferences in furtherance of EMA's purposes. Through its annual Compliance and OBD Workshops, EMA facilitates an educational exchange among truck and engine manufacturers and government regulators about the compliance process, and provides an important opportunity for industry and government regulators to learn from each other on how to better address the certification and compliance issues that affect the truck and engine manufacturing industry as a whole.