WASHINGTON, July 13 -- Rep. Don Davis, D-North Carolina, issued the following news release: * * * Davis and Fedorchak Lead Introduction of Bipartisan DEF Act to Protect Farmers, Truckers, and Equipment Operators from Faulty Emissions System Shutdowns United States Representatives Don Davis (NC-01) and Julie Fedorchak (ND-AL), Michelle Fischbach (MN-07), Jack Bergman (MI-01), and Brad Finstad (MN-01) today introduced the Diesel Engine Flexibility (DEF) Act. The legislation creates a 10-year st  more