Cleaning Up Today's Dirty Diesels

Issue Paper
February 10, 2005

Retrofitting and Replacing Heavy-Duty Vehicles in the Coming Decade

Stringent new federal standards for diesel fuel and emissions will provide significant health benefits. But these benefits will not be fully realized for 20 years unless effective programs are put in place to replace and retrofit today's fleets of dirty diesel vehicles. The most effective such programs will concentrate on urban areas, where people are exposed to more vehicle pollution, and on cleaning up the oldest, dirtiest vehicles first. This November 2004 NRDC issue paper details compelling arguments for instituting retrofit and replacement policies today and provides a roadmap for getting started.