3500C Tier 3 marine power solutions

Cat 3500C Tier 3 compliant offerings will include propulsion, auxiliary and diesel electric propulsion (DEP) engines. All Cat 3500C offerings will not require after treatment modules to meet Tier 3 regulations as a result of incorporating innovative fuel and air system modifications into the design of the engines, as Caterpillar states.
For customers operating in IMO-II regulated waters and non-EPA regulated territories, the Cat 3500C Tier 2 compliant engines can still be ordered in 2012. Those customers operating within EPA regulated waters will be able to order the Tier 3 compliant 3512C and 3516C engines from their local Cat dealers starting in fourth quarter 2011.