The use of ultra-low sulfur diesel fuel in combination with pollution control equipment such as particulate matter filters can reduce particulate matter emissions by more than 90 percent.
Air Quality Onroad and Nonroad Vehicle Emission Standards
Westchester County is taking important steps to cleaner air by requiring on-road and nonroad diesel vehicles owned, leased and operated by or on behalf of the County, when used to perform County work to utilize Ultra Low Sulfur Diesel Fuel (sulfur content not to exceed 15 ppm) and Best Available Control Technology. The Westchester County Onroad and Nonroad Vehicle Emission Standards, Chapter 873, Article XIII, Section 873.1329 (the Law) was duly adopted on February 6, 2006 and became effective February 10, 2006.
While the Federal Government has set standards for new diesel engines (2007 and newer); existing diesel engines require retrofits of air pollution controls under this Law.
Information and Forms
- Onroad and Nonroad Vehicles – Emission Standards (Powerpoint Presentation - When the presentation is launched, click anywhere in the window to advance the slides.)
- Summary of the law
- Law (Chapter 873, Article XIII, Section 873.1329)
- Notice to contractors
- Frequently Asked Questions
- Form I – Vehicle/Equipment Information
- Form II - Vehicle/Equipment ULSDF usage
For more information regarding diesel fuel and nonroad diesel vehicle and equipment, go to Environmental Protection Agency Diesel Fuel and Nonroad Equipment.