Wärtsilä marks another milestone for its Wärtsilä 34DF dual-fuel engine. The 34DF engine has been awarded the U.S. Environmental Protection Agency’s (EPA) Tier III certification for diesel mode ...

When it comes to complying with EPA’s Tier 4 emissions regulations, there’s no shortage of creativity emerging from America’s maritime engineering firms. Companies such as Hug Engineering are offering ...

Cummins Inc. announced today that the mechanical B3.3 engine will move forward to meet Tier 4 Final emissions standards in 2013 with a particulate filter aftertreatment system developed specifically ...

• New diesel-emissions regulations for off-road equipment took effect in January. • All engine manufacturers are tuning incylinder combustion to minimize emissions. • Where exhaust aftertreatment is ...