WoooHoo! - NEW EPA Standards Drastically Cut Locomotive and Marine Diesel Pollution

Progression in NOx and PM standards for switch locomotives (one of the regulated categories). Click to enlarge.

EPA Finalizes Tier 3 and Tier 4 Standards for Locomotive and Marine Diesel Engines

The US Environmental Protection Agency (EPA) has finalized its Tier 3 and Tier 4 emissions standards for locomotives and marine diesel engines. Tier 3 emission standards will take effect in 2012, followed by Tier 4 in 2015.

The final requirements will bring earlier and greater emission reductions of NO_x and PM from the locomotive and marine sectors than the proposed program envisioned. This is accomplished by finalizing the first-ever national standards for remanufactured large commercial marine diesel engines (above 600kW) and starting Tier 4 NO_x requirements for line-haul locomotives and for the largest (2,000-3,700 kW) marine engines two years earlier than initially proposed. More via greencarcongress.com