&EPA
United States
Environmental Protection
Agency
Office of Transportation and Air Quality
              EPA-420-B-16-005
                   March 2016
           Highway and Nonroad, Locomotive, and Marine (NRLM) Diesel Fuel Sulfur Standards

Federal
Regulated Entity
Large Refiners &
Importers
Small Refiners
Large Refiners &
Importers
Small Refiners
Transmix Processor &
In-use
Covered
Fuel
Highway
Highway
NR
LM
NRLM with
Credits e
NRLM'
NRe
LMe
Per-gallon Maximum Sulfur Level by Year (ppm)
2006 a
2007 b
2008
2009
80% 15
20% 500
500
-
-
-
-
-
-
500
500
HS
HS
HS
HS
500
500
HS
HS
HS
HS
500
500
HS
HS
HS
HS
2010°'d
2011
2012
2013
2014
15
15
500
500
500
500
500
15
500
500
500
500
500
15
15
500
500
500
500
15
15
500
500
500
500
15
15
15
15
15
500
Notes:
    For highway diesel fuel, standards are effective June 1 for
    refiners/importers, September 1 for pipelines and termi-
    nals, and October 15 for retailers and wholesale pur-
    chaser-consumers. Anti-downgrading provisions effective
    October 16, 2006.
    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 whole-
    sale purchaser-consumers,  and December 1 for in-use).
    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:
                                           •   40 CFR 80 Subpart I

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