On March 18, the Manufacturers of Emission Controls Association (MECA), a trade association for emissions control companies, announced that its members sold fewer diesel retrofit devices in the past few years. The companies sold 16,262 devices in 2012, down from 20,177 devices the previous year. MECA links the decrease in sales to a decrease in funding under the Diesel Emissions Reduction Act; the Act provided $49.9 million in FY2011 and $29.9 million in FY2012.