Environmental Protection Agency June 7, 2011 – Federal Register Recent Federal Regulation Documents

Control of Emissions From New Highway Vehicles and Engines; Guidance on EPA's Certification Requirements for Heavy-Duty Diesel Engines Using Selective Catalytic Reduction Technology
Document Number: 2011-13851
Type: Proposed Rule
Date: 2011-06-07
Agency: Environmental Protection Agency
EPA is requesting comment on draft guidance and related interpretations concerning the application of certain emission certification regulations to those on-highway heavy-duty diesel engines that are using selective catalytic reduction systems to meet Federal emission standards. EPA will review the comments and provide final guidance and interpretations in a future Federal Register document.