The International Association for Catalytic Control of Ship Emissions to Air, IACCSEA, was formed with the primary focus of demonstrating the technological and economic viability of Selective Catalytic Reduction (SCR) technology capable of reducing NOx emissions from marine engines. IACCSEA works closely other stakeholders such as the IMO in the continued development and implementation of strategies that lead to cleaner shipping. The objective of the Association is chiefly scientific, namely the demonstration of the technological and economic viability of using catalytic emission control technologies on ships. Primarily the body will use its voice to inform regulators (such as the IMO, European Commission, OSPAR and HELCOM) and the shipping community that regulations setting strict emission limits (such as IMO Tier III) can be met through commercially available catalytic after treatment technology. The Associations’ membership spans Asia, the US and Europe. Members include: Ceram; Haldor Topsoe; H+H; Universal; Johnson Matthey; Yarwil; Cormetech; Hitachi Zosen.