Legal Sidebari 
 
Supreme Court Holds Small Refineries 
Remain Eligible for Renewable Fuel Standard 
Exemptions After Lapse 
Updated June 28, 2021 
I
n HollyFrontier Cheyenne Refining v. Renewable Fuels Association, the Supreme Court held that small 
refineries may receive small refinery exemptions (SREs) from the renewable fuel standard (RFS) even if 
they have not received an exemption for every year of the program. Under the RFS, the U.S. 
Environmental Protection Agency (EPA) requires refineries and importers of non-renewable fuels to 
blend a certain amount of renewable fuel into transportation fuel (or to obtain credits that fulfill this 
requirement). Congress incl
uded exemption provisions in the RFS for small refineries, allowing those 
refineries t
o petition EPA “at any time” “for an extension of the exemption . . . for the reason of 
disproportionate economic hardship.” These exemptions have garnered attention from
 stakeholders and 
Congress as the number of exemptions sought and grant
ed increased significantly during the Trump 
Administration. Sever
al renewable fuels producers challenged EPA’s decisions to grant petitions to 
exempt three small refineries. The Tenth Circuit
 vacated all three exemptions on several grounds, one of 
which was appealed to the Supreme Court in 
HollyFrontier Cheyenne Refining. The Supreme Court 
reversed. This Sidebar provides background on the RFS, discusses the Tenth Circuit’s and Supreme 
Court’s opinions, and explores its implications for Congress. 
Small Refinery Exemptions Under the Renewable Fuel Standard 
Under the Clean Air Act, the RFS generally requires EPA t
o ensure that increasing (i.e., market-forcing) 
specified volumes of categories of renewable fuels are blended into transportation fuel in the United 
States each year. In turn, EPA requires refineries and importers of non-renewable fuels (obligated parties) 
to meet
 annual renewable volume obligations (RVOs) by either blending renewable fuels into 
transportation fuel themselves or obtaining credits (renewable identification numbers or RINs) from other 
entities that blended renewable fuels. Each obligated party’s individual RVO is based on its gasoline and 
diesel production or imports and a
n annual percentage standard that EPA promulgates every year. The 
annual percentage standards for each renewable fuel category are based on projected gasoline and diesel 
consumption in the United States and the statutory volume requirements.  
Congressional Research Service 
https://crsreports.congress.gov 
LSB10418 
CRS Legal Sidebar 
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When the RFS was enacted in 2005, Congress included 
an exemption provision for small refineries. 
Under the RFS, a refinery is considered 
a small refinery if it does not process more than 75,000 barrels a 
day of crude oil on average in a calendar year. The RFS automatically
 exempted all small refineries from 
RFS compliance until 2011 (i.e., through the 2010 compliance year). Congress required EPA to extend 
this exemption for
 two additional years (i.e., through 2012) if, according to a study by the Secretary of 
Energy, compliance with the RFS would subject small refineries to a “disproportionate economic 
hardship.” In addition—and relevant to the Tenth Circuit decision—the RFS allows small refineries to 
petition EPA “at any time” “for an extension of the exemption . . . for the reason of disproportionate 
economic hardship.” The statute requires EPA t
o consult with the Department of Energy (DOE) regarding 
any such petitions and to act on the petitions within 90 days of receiving them. If granted, the exemption 
is only valid for a specified compliance year(s). Small refineries must petition for each compliance year 
and demonstrate disproportionate economic hardship due to RFS compliance for that year. 
EP
A considers the information in small refinery exemption petitions (including the petitioners’ names) 
and its decisions to grant or deny them to be confidential business information (CBI). As a result, 
information about which refineries petitioned for the exemption, the outcome of those petitions, or the 
analysis supporting EPA’s decision is only available to the extent the refinery itself discloses it. However, 
EPA now publishes aggregate data on petitions received, grants issued, and volumes exempted on it
s RFS 
Small Refinery Exemptions dashboard. According to the dashboard, EPA extended the small refinery 
exemption for 24 small refineries for 2011 and 2012 pursuant to DOE’s study. EPA received as few as 13 
petitions in 2014 and as many as 42 petitions in 2018 for small refinery exemptions. EPA granted the 
fewest petitions in 2015, exempting seven small refineries, and the most to-date in 2017, exempting 35 
small refineries. The increasing number of small refinery exemption petitions filed and granted beginning 
with the 2016 compliance year has
 gained attention from a number of different stakeholders.  
Tenth Circuit Opinion in Renewable Fuels Association v. EPA 
In the underlying Tenth Circuit litigation in 
Renewable Fuels Association v. EPA, renewable fuels 
producers challenged EPA’s decision to grant petitions to exempt three small refineries from the RFS for 
specific compliance years
: HollyFrontier Cheyenne Refining LLC (Cheyenne) for 2016
, HollyFrontier 
Woods Cross Refining LLC (Woods Cross) for 2016, 
and Wynnewood Refining Company, LLC 
(Wynnewood) for 2017. Despite the confidentiality of the exemption petition process, the petitioners 
determined that the refineries had received the exemptions based on media reports and public company 
filings. They challenged a number of aspects of EPA’s decisions, and the Tenth Circuit agreed with the 
challengers with respect to two central legal issues.  
The first grounds on which the Tenth Circuit vacated the small refinery exemptions was appealed to the 
Supreme Court. The Tenth Circuit agreed with the petitioners that small refineries ar
e only eligible to 
receive a small refinery exemption if they have previously received an SRE for every compliance year up 
to the compliance year for which they seek an exemption. The statute allows small refineries to petition 
EPA for
 “an extension of the exemption.” To interpret this phrase, the court considered the plain meaning 
of the term “extension” 
as defined by various dictionaries. These definitions, it determined, generally 
involved something being increased or added to, such as a period of time. The court reasoned, based on 
these definitions and “common sense,
” “that the subject of an extension must be in existence before it can 
be extended.” In other words, a small refinery could only 
extend an exemption it already had received. In 
reaching this conclusion, the court
 distinguished extending an exemption from renewing or restarting it. 
Based on this understanding, the court held that
 “a small refinery which did not seek or receive an 
exemption in prior years is ineligible for an extension, because at that point there is nothing to prolong, 
enlarge, or add to.” The court determined that this interpretation woul
d “funnel[] small refineries towards 
compliance over time” to achieve t
he “aggressive and ‘market forcing’” renewable fuels targets set by the 
statute. Finding that
 none of the three small refineries at issue had received an exemption every year prior 
  
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to the compliance years at issue in the petitions, the court held that the petitions were improperly granted. 
HollyFrontier Cheyenne Refining, which had intervened in the Tenth Circuit case, filed a petition for 
certiorari with the Supreme Court for review of this holding.  
The Tenth Circuit also vacated the SREs by concluding that EPA had erred in its analysis of the SRE 
petitions. This holding was not appealed to the Supreme Court. 
Supreme Court Reverses Tenth Circuit in HollyFrontier Cheyenne 
Refining v. Renewable Fuels Association 
The Supreme Court
 reversed the Tenth Circuit’s holding that small refineries must have obtained 
continuous SREs to continue to be eligible for an “extension” of the exemption. Looking to t
he “ordinary 
or natural meaning,” the majority opinion by Justice Gorsuch reasoned that it i
s “consistent with ordinary 
usage” to allow for an extension after a time period has lapsed or expired. The Court pointed to examples 
such as a
 student asking for an extension after a deadline, or
 coronavirus aid legislation allowing for the 
extension of certain public benefits that had lapsed
—without retroactively providing benefits for the 
intervening period. While affirming that an extension could include a continuity requirement, the Court 
relied on other statutory
 “clues”—such as the fact that small refineries may petition for an extension “at 
any time”—to conclude that Congress did not intend to require continuity for SREs.  
The Court
 rejected the Renewable Fuels Association’s contention that the exemption was intended to “end 
as quickly as possible,” concluding that the statutory language would have been an “odd way to achieve” 
a sunset scheme. Furthermore, even under the sunset theory, small refineries that did obtain an exemption 
every year could continue receiving them indefinitely. The Court took this fact as evidence that the 
provision was not intended to sunset quickly.  
Noting that the remaining arguments revolve ar
ound legislative intent and public policy justifications, the 
Court concluded that
 both sides present plausible policy arguments for their favored interpretations. After 
identifying multiple policy arguments with plausibl
e competing narratives, the Court stated that “neither 
the statute’s text, structure, nor history afford [the Court]
 sufficient guidance to be able to choose with 
confidence between the parties’ competing narratives and metaphors.” The Court concluded, therefore, 
that it could not rely on such policy arguments as a basis for its decision and it must depend solely on the 
statutory text. Holding that the statutory text does not
 “command[] a continuity requirement,” the Court 
reversed the Tenth Circuit opinion. 
Justice Barrett
 dissented, joined by Justices Sotomayor and Kagan. The dissent concluded that even if it 
were possible to interpret “extension” as not requiring continuing, the term i
s “most naturally read” to 
“dictate that the subject of an extension must be in existence before it can be extended.”  
Considerations for Congress 
With the Supreme Court’s reversal of the Tenth Circuit’s opinion, small refineries that have not received 
continuous exemptions from the RFS are once again eligible to petition for SREs. Small refinery 
exemptions have been of interest to many in the
 116th and
 117th Congresses. In light of the Tenth 
Circuit’s opinion and Supreme Court’s reversal, Congress could consider whether the Supreme Court’s 
interpretation reflects the intent of Congress as to which small refineries may be exempt from RFS 
compliance. In particular, Congress could consider whether the exemption was intended to be available 
for any compliance year as market conditions and economic factors change over time, as the Court 
interprets congressional intent, or intended as a temporary measure to allow small refineries more time to 
comply. To the extent the Court’s opinion does not reflect congressional intent, Congress could consider 
amending the small refinery exemption provision to provide more explicit directions. 
  
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Beyond amending the RFS to directly address the issues that the Supreme Court considered, Congress 
may also more broadly examine the economic burden the RFS imposes on obligated parties, which cause 
small refineries to petition for exemptions. To the extent Congress determines that any such costs are 
higher than anticipated or have not generated the intended market-forcing effect, it could consider 
amending other provisions of the RFS to modify either the burdens imposed or the parties who bear them.   
  
Author Information 
 Erin H. Ward 
   
Legislative Attorney  
 
 
 
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