Navistar is suing to force the Environmental Protection Agency to go back and re-test SCR engines for compliance with clean air standards and other aspects of the 2010 emission rule. In the suit, ...

SCR technology is proving it can effectively meet 2010 diesel exhaust emissions regulations for medium- and heavy-duty trucks, without adding significant operating or maintenance costs. For 2010, the ...

This story appears in the Jan. 12 print edition of Transport Topics. The Environmental Protection Agency said it is concerned that emissions systems using a copper compound that engine maker Cummins ...

MAN Energy Solutions announced that its MAN 175D SCR system successfully completed its final Type Approval Test, and was awarded IMO Tier III certification by all major classification societies.