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Emission Standards Reference Guide

Highway, Nonroad, Locomotive, and Marine Diesel Fuel Sulfur Standards

Regulated Entity Covered Fuel Per-gallon Maximum Sulfur Level by Year (ppm)
2006a 2007b 2008 2009 2010c,d 2011 2012 2013 2014
Federal Large Refiners & Importers Highway 80% 15
20% 500
15
Small Refiners Highway 500
Large Refiners & Importers NR - 500 500 500 15 15 15 15 15
LM - 500 500 500 500 500 15 15 15
NRLM with Creditse - HS HS HS 500 500 500 500 15
Small Refiners NRLMf - HS HS HS 500 500 500 500 15
Transmix Processor & In-use NRe - HS HS HS 500 500 500 500 15
LMe - HS HS HS 500 500 500 500 500

 

Notes:

a  For highway diesel fuel, standards are effective June 1 for refiners/importers, September 1 for pipelines and terminals, and October 15 for retailers and wholesale purchaser-consumers.  Anti-downgrading provisions effective October 16, 2006.

b  For Nonroad, Locomotive, and Marine (NRLM) diesel fuel, standards are effective June 1 for refiners; downstream requirements apply for Northeast/Mid-Atlantic area only (August 1 for terminals, October 1 for retailers and wholesale purchaser-consumers, and December 1 for in-use).

c  For highway diesel fuel, standards are effective June 1 for refiners/importers, October 1 for pipelines and terminals, and December 1 for retailers and wholesale purchaser-consumers.

d  For NRLM diesel fuel, standards are effective June 1 for refiners, August 1 for terminals, October 1 for retailers and wholesale purchaser-consumers, and December 1 for in-use.

e  Excluding the Northeast and Alaska.

f  Excluding the Northeast, with approval in Alaska.

Code of Federal Regulations (CFR) citation:

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