Renewable Fuel Standard Program: Standards for 2018 and Biomass-Based Diesel Volume for 2019; Availability of Supplemental Information and Request for Further Comment (Deadline October 19, 2017)

ArgentinaEnvironmental Protection AgencyFederal Agency/Executive BranchFederal LitigationFederal RegulationIndonesiaOpinionsPolicy
October 04, 2017

(U.S. Environmental Protection Agency/Federal Register)  This document provides additional data and an opportunity to comment on that data and potential options for reductions in the 2018 biomass-based diesel, advanced biofuel, and total renewable fuel volumes, and/or the 2019 biomass-based diesel volume under the Renewable Fuel Standard (RFS) program. In a July 21, 2017 notice of proposed rulemaking, the EPA proposed certain reductions in the statutory volume targets for advanced biofuel and total renewable fuel for 2018, and requested comment on further reductions based on various considerations. This document presents additional data on production, imports and cost of renewable fuel and several options for how we may consider such data in establishing the final volume requirements using the waiver authorities provided by the statute.

Comments must be received on or before October 19, 2017.

Entities potentially affected by the July 21, 2017 proposed rule [1(the July proposal), should it become final, are those involved with the production, distribution, and sale of transportation fuels, including gasoline and diesel fuel or renewable fuels such as ethanol, biodiesel, renewable diesel, and biogas.

...

On July 21, 2017, EPA proposed reductions in the statutory volume targets for advanced biofuel and total renewable fuel using the cellulosic waiver authority in Clean Air Act (CAA) section 211(o)(7)(D).[2We proposed using the maximum reduction permitted under that authority (considering the proposed cellulosic volume requirement) to reduce the 2018 volume targets for advanced biofuel and total renewable fuel to 4.24 and 19.24 billion gallons, respectively, in part by placing a greater emphasis on cost considerations than we have in the past. We requested comment on possible additional reductions in advanced biofuel (with corresponding reductions in total renewable fuel) using the general waiver authority in CAA section 211(o)(7)(A) or other authorities. Similarly, we requested comment on whether EPA should, in the final rule, reduce the 2019 volume requirement for biomass-based diesel (BBD) [3to a level below the proposed level of 2.1 billion gallons.[4]

We did not specifically request comment in the proposed rule on a possible reduction of the 2018 volume requirement for BBD, which was set at 2.1 billion gallons in 2016.[5We did, however, request comment on the use of the general waiver authority or other authorities to reduce the advanced biofuel requirement for 2018, and BBD is not only nested within advanced biofuel but is also the predominant source of advanced biofuel. Therefore, considerations leading to a reduction of the advanced biofuel volume may also be relevant in reducing the 2018 BBD volume requirement. In this document we are providing additional information on renewable fuel costs and supply as well as possible options for the exercise of our waiver authorities based on these and other considerations.

We note that the statute also provides EPA the authority to waive a portion of the BBD standard if there is a significant renewable feedstock disruption or other market circumstance that would make the price of biomass-based diesel fuel increase significantly, and to make related reductions in the advanced biofuel and total renewable fuel volume requirements.[6In light of recent developments, described below, we seek comment on whether it would be appropriate to use this waiver authority in the final rule.

III. Cost and Supply of Advanced Biofuel

As EPA indicated in the July proposal, the cost of advanced biofuels is high on a per gallon basis compared to the petroleum fuels they replace. The expiration of the biodiesel tax credit in the U.S. at the end of 2016 has already impacted the effective price of biodiesel to blenders, as well as the price of biodiesel blends to consumers. While it does not appear that the expiration of the tax credit has had a direct impact on the price of unblended biodiesel (B100) in 2017, we expect that the expiration of the tax credit has had a significant impact on the effective price of biodiesel sold to blenders. This is because the biodiesel tax credit that expired at the end of 2016 was received by biodiesel blenders, rather than biodiesel producers. The price of biodiesel and EPA's estimated effective price of biodiesel to blenders (net the $1/gallon tax credit when applicable) from January 2016 through August 2017 are shown in Figure III-1 below.[7We also expect the price of biodiesel used in the U.S. could increase further following a recent preliminary determination by the Department of Commerce that it would be appropriate to place countervailing duties of 41% to 68% on imports of biodiesel from Argentina and Indonesia.[8Cash deposits against preliminary duties are currently being collected, potentially impacting prices prior to a final determination. Such duties could also affect import volumes as pointed out in a recent letter from the American Fuel and Petrochemical Manufacturers (AFPM).[9A final decision from the Department of Commerce and the International Trade Commission, which could include final countervailing duty orders, is scheduled for December 29, 2017.

The level of imports and exports can also affect the price of renewable fuel used in the U.S., and both imports and export volumes have varied considerably over the last several years. Based on data collected on RIN generation and retirement from the EPA-Moderated Transaction System (EMTS), we have determined gross domestic production and import and export volumes for advanced biofuels and biomass-based diesel for the years 2013 through 2016.[10Further details can be found in a memorandum to the docket.[11]

Table III-1—Supply of Advanced Biofuel

[million RINs]

  2013 2014 2015 2016
Gross domestic production 2,278 2,308 2,327 3,023
Imports 911 479 710 1,177
Exports 128 134 143 202

Table III-2—Supply of Biomass-Based Diesel

[million RINs]

  2013 2014 2015 2016
Gross domestic production 2,162 2,196 2,155 2,791
Imports 476 415 596 1,121
Exports 125 134 143 202

Commenters raised concerns that along with affecting prices of renewable fuels in the U.S., imports may also have an impact on the energy independence and security status of the U.S.[12Increasing the energy independence and security of the U.S. is one of the stated goals in the Energy Security and Independence Act of 2007, and the RFS program's standards affect the volumes of both domestic production and imports. EPA requests comment on whether it is appropriate to consider possible impacts of these volumes on U.S. energy independence and security in setting the applicable standards under the RFS program, insofar as they impact those factors that we are permitted to consider and evaluate under the available waiver authorities, and/or the standard-setting authority for BBD.

EPA remains concerned about the high cost of advanced biofuels. As a result, and in light of the pending action on countervailing duties on imported biodiesel from Argentina and Indonesia which we believe could, if finalized, further increase the cost and/or decrease the supply of advanced biofuel in the U.S., we believe it is appropriate to request further comment on appropriate ways to determine the applicable volume requirements for 2018, and the BBD volume requirement for 2019.

IV. Possible Further Reductions of 2018 Volume Requirements

A. General Waiver Authority

Section 211(o)(7)(A) of the CAA provides that EPA, in consultation with the Secretary of Agriculture and the Secretary of Energy, may waive the applicable volumes specified in the Act in whole or in part based on a petition by one or more States, by any person subject to the requirements of the Act, or by the EPA Administrator on his own motion. Such a waiver must be based on a determination by the Administrator, after public notice and opportunity for comment that: (1) Implementation of the requirement would severely harm the economy or the environment of a State, a region or the United States, or (2) there is an inadequate domestic supply. We sought comment on the possible use of the general waiver authority in the proposal, and here are once again seeking comment in light of the data provided in Section III of this document and a possible revised interpretation of the inadequate domestic supply waiver authority, as discussed below. We also solicit further comment on our use of the general waiver authority under a determination of either inadequate domestic supply or severe economic harm to reduce volumes of renewable fuel.

1. INADEQUATE DOMESTIC SUPPLY

In the annual rule establishing the 2014-2016 renewable fuel standards, we determined that there would be an “inadequate domestic supply” of renewable fuel to consumers in 2016, and so exercised the general waiver authority to reduce volumes to levels we believed could be supplied.[13The United States Court of Appeals for the District of Columbia Circuit recently ruled in a lawsuit challenging that rule that EPA improperly focused on supply of renewable fuel to consumers, and that the statue instead requires a “supply-side” assessment of the volumes of renewable fuel that can be supplied to refiners, importers and blenders. Americans for Clean Energy (“ACE”) v. EPA, 864 F.3d 691 (2017). Other components of EPA's interpretation of “inadequate domestic supply” were either upheld by the court in ACE (e.g., EPA's interpretation that carryover RINs are not part of the “supply” for purposes of this waiver authority) or were not challenged (e.g., EPA's consideration of biofuel imports as part of the domestic supply). In response to the proposed 2018 standards, we received comments suggesting that EPA should interpret the undefined term “domestic” in “inadequate domestic supply” to account for only volumes of renewable fuel that are produced domestically.[14As we understand this suggestion, in determining the adequacy of supply, EPA would consider only whether there was an adequate supply of domestically produced volumes to satisfy the statutory volume targets. If there were not, EPA would be authorized to reduce the statutory Start Printed Page 46178applicable volumes. Having made the threshold finding that there was an inadequate domestic supply, EPA could consider the availability of imports as one factor among others in determining whether to exercise its discretion to use the waiver authority.

Some commenters suggested that this interpretation would rely on common dictionary definitions of “domestic,” as meaning “of, or relating to, or originating within a country and especially one's own country,” [15or “[o]f or pertaining to one's own country or nation; not foreign, internal, inland, `home.'” [16]Commenters suggested that this interpretation could lead to volume requirements providing greater stability and certainty for obligated parties; they noted the increasing uncertainty in international trade markets for biofuels, including the potential for disruptions in supply and duties being placed on these biofuels. These commenters suggested that by basing the volume requirements on the projected domestic supply of biofuels, EPA could set volume requirements that would better ensure the availability of renewable fuel for compliance.[17]

We note that this interpretation of the statutory phrase “inadequate domestic supply,” would not in any way limit the use of qualifying imported biofuel by obligated parties to ultimately comply with the annual percentage standards. Imported and domestically produced biofuels would still have the same opportunities to compete in the U.S. market as they do now. The interpretation would only affect the way in which EPA calculates the volumes used to set the percentage standards with which obligated parties must comply, by allowing EPA to consider the supply of domestically produced biofuels in deciding whether to use the general waiver authority. Once the standards were established, however, qualifying imported renewable fuel could still be used to comply with the established standards, exactly as it is currently.

We request comment on whether this interpretation would comply with the Court's direction in ACE that we only consider “supply-side factors” in determining whether there is an inadequate domestic supply. Although the Court in ACE explained that EPA “may” or is “authorized” to consider renewable fuel imports as part of a supply-side assessment under this waiver authority,[18we note that these statements were made in the context of comparing supply-side considerations to demand-side considerations, and finding EPA's demand-side consideration to be impermissible. Thus, the court's statements may indicate the scope of permissible, but not required, interpretations, and not foreclose further consideration by EPA of the scope of appropriate supply-side considerations in light of the statute and the court's decision.[19]

We believe there are a number of reasons why this interpretation of the phrase “inadequate domestic supply” may be appropriate. First, as noted by commenters, this interpretation may be consistent with a straightforward reading of the term “domestic supply” as referring to volumes of domestically-produced renewable fuels. Second, as also noted by commenters, basing EPA's use of the general waiver authority on domestic supply only may better meet the energy independence and security purposes of EISA. Third, as EPA has noted in past rulemakings,[20it is extremely difficult to project volumes that can be made available in the U.S. through imports, and we believe that in light of this substantial uncertainty, that EPA could reasonably interpret the statute as allowing it the discretion to waive statutory applicable volumes on the basis of a more certain assessment of the likely supply of domestically-produced fuels.

We invite comment on this possible interpretation of the term “inadequate domestic supply,” and the possibility of applying this interpretation to reduce the final 2018 advanced biofuel volume requirement beyond the level proposed. In Section III of this document we provide data on the domestic production of advanced biofuels for 2013 through 2016. We solicit comment on data and methodologies we should use for estimating the 2018 supply of domestically-produced BBD and other advanced biofuels if we adopt this interpretation. We also invite comment on the potential impact on imports and the domestic production of advanced biofuel if EPA were to further reduce the proposed applicable volume of advanced biofuel on the basis of an interpretation of the term “inadequate domestic supply” as discussed in this section. We also request comment on whether and how EPA should consider the potential level of imports in determining whether to use its discretionary general waiver authority to reduce the required volume requirements should this interpretation be adopted.

Considering the nested nature of the standards, we also seek comment on the appropriateness of (and possible basis for) providing a reduction in the total renewable fuel applicable volume requirement commensurate with any reduction in the advanced biofuel volume requirement that may be finalized based on a reinterpretation of the inadequate domestic supply waiver authority as discussed in this section. We note that absent a commensurate reduction, the implied volume for conventional biofuels (i.e., the difference between advanced and total volumes), would exceed the 15 billion gallon implied cap that can be discerned from the statutory tables. We note that both the cellulosic waiver authority in CAA section 211(o)(7)(D) and the BBD waiver authority in section 211(o)(7)(E) stipulate that when nested cellulosic or BBD volumes, respectively, are waived under these authorities, that reductions in the advanced and total renewable fuel volume requirements are authorized. Similarly, due to the nested nature of the standards, advanced biofuel can be used to meet the total renewable fuel requirement. This program structure, established in EISA, suggests that, in general, a reduction in a nested renewable fuel type can justify a corresponding reduction in the other renewable fuel standard or standards that the fuel can also be used to meet. We seek comment on the extent to which EPA should interpret the inadequate domestic supply waiver authority in CAA section 211(o)(7)(A) as also authorizing EPA to make a commensurate reduction in total renewable fuel volumes when waiving advanced biofuel volumes on the basis of inadequate domestic supply.

2. SEVERE ECONOMIC HARM

Section 211(o)(7)(A)(1) of the CAA provides that EPA may waive the applicable volume based on a determination that implementation of the requirement would severely harm the economy or environment of a State, a region, or the United States. We received comments from several Start Printed Page 46179stakeholders suggesting that EPA should reduce volumes on the basis of severe economic harm.[21We note that EPA has previously expressed an interpretation of the severe economic harm waiver in denying petitions to exercise the waiver.[22We solicit comment on the appropriateness of this interpretation, as well as rationales and data to support approaches for identifying volumes that would be associated with severe economic harm, or other means of implementing this waiver authority consistent with the statutory provision. In particular, we seek input on whether there is information indicating that severe economic harm is occurring under current standards or would occur for any volume requirement that could be established in the current rulemaking [23and, if so, whether and how volumes should be adjusted to address such harm.

B. Biomass-Based Diesel Waiver Authority

CAA section 211(o)(7)(E)(ii) provides that if EPA determines that there is a significant renewable feedstock disruption or other market circumstance that would make the price of BBD increase significantly, EPA shall, in consultation with the Secretary of Energy, and the Secretary of Agriculture, issue an order to reduce, for up to a 60-day period, the annual volume requirement for BBD by an appropriate quantity that does not exceed 15 percent. The statute also stipulates that EPA is authorized to reduce applicable volumes of advanced biofuel and total renewable fuel by the same or a lesser volume than the reduction in BBD. Also, the statute provides that EPA may provide additional 60-day waivers, with an appropriate additional reduction in the annual requirement of up to 15%, if EPA determines that the feedstock disruptions or circumstances warranting the initial waiver are continuing.

We note that the renewable fuels standards apply on an annual basis and compliance is determined three months after the end of the year. Waiving the standard for 60 days without adjusting the annual standard would provide no relief. We thus solicit comment on whether it would be appropriate to implement the provision by waiving the annual standard (in circumstances where use of the provision is authorized) by a volume that does not exceed 15%. Alternatively, it may be possible to implement the provision by allowing each refiner or importer to subtract from its compliance obligation calculations an amount of gasoline and diesel produced or imported during a specific 60-day period, subject to a 15% limitation on the reduction in their annual RVO. We note that the statute also allows for an extension of any initial waiver for additional 60-day periods if the feedstock disruption or other market circumstance persists. We invite comment on how to interpret and implement the BBD waiver provision consistent with the text and goals of the Act.

As described in Section III of this action, the price of biodiesel, particularly advanced biodiesel, has been impacted by the expiration of the federal tax credit at the end of 2016 and may be expected to be impacted further by the imposition of new duties on imports of biodiesel from Argentina and Indonesia.[24We seek comment on the likely result of these and any other factors on biodiesel prices, and the extent to which any expected price increases should be considered “significant” for purposes of the waiver authority in CAA section 211(o)(7)(E)(ii). We also seek comment on whether the relevant biodiesel prices are those paid by refiners, importers and blenders,[25and if so whether it is appropriate to consider the increase in the “effective price” of biomass-based diesel (net of any tax credit) to blenders for these purposes. We note that the 2018 BBD volume requirement was established by rule in 2016 at 2.1 billion gallons.[26Therefore, if EPA were to make the appropriate findings under the statute, CAA section 211(o)(7)(E)(ii) would authorize an initial waiver of up to 315 million gallons (15% as specified in the statute) of the 2018 applicable volume requirement of 2.1 billion gallon (resulting in an applicable volume as low as 1.79 billion gallons), with additional incremental reductions possible in 60 day intervals if the circumstances warranted.[27]

This statutory provision also indicates that EPA may reduce the applicable volume of renewable fuel and advanced biofuels requirement by the same or a lesser volume as the reduction in the BBD volume requirement. Were we to exercise this BBD waiver authority, we believe it would be appropriate to lower the advanced biofuel and total renewable fuel volumes by the same amount, since the predominant form of advanced biofuel is BBD and a reduction in the BBD volume requirement may have little or no impact on BBD prices if there is no commensurate reduction in advanced biofuel and total renewable fuel volumes. If the BBD volume requirement were to be reduced by 315 million gallons, an equivalent reduction in advanced biofuel and total renewable fuel would be 473 million ethanol equivalent RINs.[28This would bring the 2018 advanced biofuel volume requirement down from the proposed level of 4.24 billion gallons to 3.77 billion gallons and the 2018 total renewable fuel volume requirement from the proposed level of 19.24 billion gallons to 18.77 billion gallons.[29]

We request comment on the possible use of the waiver authority provided in CAA section 211(o)(7)(E)(ii) to reduce the 2018 volume requirement for BBD by as much as 315 million gallons, and to concurrently reduce the advanced biofuel and total renewable fuel volume requirements by as much as 473 million gallons. In particular, we seek data on recent BBD price increases and expectations for additional price increases, and we seek comment on the extent to which these price increases should be considered `significant” for purposes of the CAA section 211(o)(7)(E)(ii) waiver authority and the extent of a waiver (up to 15%) that would be necessary to address or avoid a significant price increase.

V. Consideration of Possible Reductions in the Biomass-Based Diesel Volume Requirement for 2019

The statute establishes applicable volume targets for BBD only through 2012. For years after those for which Start Printed Page 46180volumes are specified in the statute, EPA is required under CAA section 211(o)(2)(B)(ii) to determine the applicable volume of BBD, in coordination with the Secretary of Energy and the Secretary of Agriculture, based on a review of implementation of the program during calendar years for which the statute specifies the volumes and an analysis of the following factors:

1. The impact of the production and use of renewable fuels on the environment, including on air quality, climate change, conversion of wetlands, ecosystems, wildlife habitat, water quality, and water supply;

2. The impact of renewable fuels on the energy security of the United States;

3. The expected annual rate of future commercial production of renewable fuels, including advanced biofuels in each category (cellulosic biofuel and BBD);

4. The impact of renewable fuels on the infrastructure of the United States, including deliverability of materials, goods, and products other than renewable fuel, and the sufficiency of infrastructure to deliver and use renewable fuel;

5. The impact of the use of renewable fuels on the cost to consumers of transportation fuel and on the cost to transport goods; and

6. The impact of the use of renewable fuels on other factors, including job creation, the price and supply of agricultural commodities, rural economic development, and food prices.

The statute also specifies that the volume requirement for BBD cannot be less than the applicable volume specified in the statute for calendar year 2012, which is 1.0 billion gallons. The statute does not, however, establish any other numeric criteria, or specify how EPA should weigh the importance of the often competing factors, and the overarching goals of the statute when EPA sets the applicable volumes of BBD in years after those for which the statute specifies such volumes. In the period 2013-2022, the statute specifies increasing applicable volumes of cellulosic biofuel, advanced biofuel, and total renewable fuel, but does not do so for BBD, instead specifying only a 1.0 billion gallon minimum and factors that EPA must evaluate in determining the volume requirement that EPA is to set.

We received comments on our July proposal requesting that EPA reduce the proposed applicable volume of BBD for 2019 due to the large volume of imported biodiesel and renewable diesel in recent years (See Table 2 for import volumes of BBD),[30which could affect our analysis of several of the factors listed above. Additionally, on August 28, 2017, the Department of Commerce published a preliminary determination that countervailing subsidies are being provided to producers and/or exporters of biodiesel from Argentina and Indonesia, and began requiring cash deposits equal to the subsidy rates.[31These subsidies ranged from 50%-64% for biodiesel from Argentina and 41%-68% for biodiesel from Indonesia.[32If finalized, the determination would have a direct impact on the cost of biodiesel imported from these countries, and could ultimately lead to increased cost to consumers of transportation fuel and the cost to transport goods, and/or could lead to reduced imports from these countries and potentially more limited supplies in the United States.

In our proposed assessment of the statutory factors listed above, we noted that the proposed BBD standard for 2019, if finalized, would not likely impact the advanced biodiesel and renewable diesel supply to the U.S. market. Instead, the higher advanced biofuel volume requirement would be the determinant, and the market would supply more advanced biodiesel and renewable diesel than the BBD standard would require. We further noted in the July proposal our expectation that the historic trend in establishing the advanced volume requirements (i.e., annual increases) would continue into 2019, and the current production levels and costs for different types of advanced biofuel led us to believe that the same volume of BBD would likely be produced and imported to satisfy the anticipated 2019 advanced biofuel standard regardless of the applicable volume of BBD we ultimately required for purposes of the 2019 BBD standard. Any differences in the production and import of BBD were expected to be marginal and uncertain as BBD competes with other advanced biofuels in meeting the 2019 advanced biofuel volume. We proposed a level that we reasoned would provide a level of guaranteed support to the BBD industry, while also ensuring an opportunity under the advanced standard for the further development and marketing of non-BBD advanced biofuels that might have superior environmental characteristics or cost implications. As noted above, we are now also soliciting comment on options for reducing the 2018 advanced biofuel volume requirement. If we determine that it is appropriate to use one of the waiver authorities discussed above to reduce the required volume of advanced biofuel in 2018, it is possible that similar considerations would lead us to provide reductions of the 2019 advanced biofuel volume requirement for similar reasons. A lower required volume of advanced biofuel in 2019 could result in the proposed required volume of BBD for 2019 (2.1 billion gallons or 3.15 billion ethanol-equivalent RINs) driving demand for advanced biodiesel and renewable diesel, and could provide insufficient room under the advanced standard for non-BBD advanced biofuels to compete for market share within the advanced biofuel category and an inappropriate level of guaranteed support to the BBD industry.

In addition to these considerations, we seek comment on the extent to which the successful BBD industry requires the proposed level of guaranteed support, or if the advanced standard together with a significantly lower BBD standard would be sufficient for that purpose while advancing the goals of energy independence and security by providing additional encouragement for the growth of other types of advanced biofuels. 

We request comment on how EPA should take into consideration the costs of biodiesel and the factors that influence those costs, together with other relevant factors discussed above or which commenters may wish to bring to our attention, in setting the appropriate required volume of BBD for 2019. We also request comment on what the volume requirement should be, noting that it could be equal to or greater than the statutory minimum of 1.0 billion gallons.    READ MORE

Biofuel groups implore Trump to stop EPA from harming US workers  (Biodiesel Magazine)

US biofuel groups ask Trump to rein in EPA on changes to blending mandate (Platts)

Nebraska Ethanol Board Official Concerned about RIN Proposal (WNAX; includes AUDIO)

EPA Proposes Further Cuts in Biofuels Under RFS (Energy.AgWired.com)

EPA blindsides biodiesel industry with 'outrageous' proposed cuts (Biodiesel Magazine)

Iowa Biodiesel Board urges Trump to stop EPA from gutting RFS (Biodiesel Magazine)

EPA, ethanol industry clash over potential changes to Renewable Fuel Standard program (Washington Times)

Biofuel groups ask Trump to continue to grow the RFS (Biomass Magazine)

Biofuel Groups Urge Trump to Support RFS (National Corn Growers Association)

Skor responds to reports EPA may change policy on RINs, exports (Ethanol Producer Magazine)

NBB ON PROPOSED BIODIESEL CUTS: DIFFERENT PRESIDENT, SAME EPA (Brownfield Ag News)

RINs tumble after US EPA says weighing 2018 biofuels blending mandate cut (Platts)

EPA Is Said to Weigh Ethanol Rule Change That Could Aid Icahn (Bloomberg)

EPA opens comment period on proposal to reduce 2018, 2019 RVOs (Biomass Magazine)

US biodiesel industry calls for Trump to act on EPA (Biofuels International)

EPA opens comment period on proposal to reduce 2018, 2019 RVOs (Ethanol Producer Magazine)

Senators urge Pruitt to issue strong 2018 RFS RVOs (Ethanol Producer Magazine)

Renewable fuel regulation doesn't put 'America First (Washington Examiner; includes VIDEO)

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Bu16 Budget building block chemicals Bulgaria bunker bunker oil Bureau of Land Management (BLM) Burkina Faso Burma Burundi buses Business and Industry Program (B&I) business law business resources Business/General Aviation butadiene butandeiol (bio-BDO) Butane butanediol butanol emissions butanol/biobutanol butyl acetate butylene butyric acid by c C1 C2 C21 C3 sugar C5 sugar C6 sugar Cabo Verde cactus cactus pear cagaita calibration California California Air Resources Board (CARB) Cambodia Camelina camels Cameroon Canad Canada Canary Islands canary reed grass canarygrass candle nut cannabis canola straw Canola/Rapeseed cap-and-invest cap-and-trade capybara capybras carbohydrates carbon carbon capture and storage (CCS) carbon capture and utilization (CCU) carbon cost carbon credit carbon credit markets carbon cycle carbon debt Carbon Dioxide (CO2) carbon efficiency carbon emissions carbon fiber carbon insets Carbon Intensity (CI)/Carbon Footprint carbon life cycle carbon markets Carbon Monoxide (CO) carbon negative carbon neutrality carbon offsets carbon pipeline carbon price carbon recycling carbon removal carbon sink carbon standard carbon tax Carbon tax border adjustments carbon tax-and-dividend carbon terminal carbon user fee Carbon Utilization and Biogas Education Program carbon-14 testing carbon-efficient fuels carbon/CO2 sequestration carcinogens cardoon Caribbean carinata carinata/brassica carinata carob CAS Registry cashew cashew apple Cashew Nut Shell Liquid (CNSL) CASI Cassava cassava price cassava pulp cassava stalk castor bean castor stalk catalysis catalysts catalytic decarboxylation catalytic hydrothermal conversion catalytic hydrothermal conversion-to-jet (CHCJ) catalytic hydrothermal gasification catalytic hydrothermolysis jet CHJ pathway cattails cattle cavitation CBD (cannabidiol) CBG (compressed biogas) cell culturing cellulase enzymes cellulose cellulosic biofuel Cellulosic biomass cellulosic diesel Cellulosic ethanol cellulosic ethanol price cellulosic feedstock cellulosic production tax credit cellulosic sugars Cellulosic Tax Credit cellulosic waiver credit cement Central African Republic Central America Certificate Program Certificates of Origin (COs) certification certification fuels cesium cetane Chad change in soil condition charging stations CHCJ-5 chemical-looping hydrogen method Chesapeake Bay chicken feathers chickens Chile Chili China chitin chp chromium chufa/cyperus esculents/nutsedge CIA circular economy citrus citrus greening disease Citrus Peel clean air Clean Air Act (CAA) clean diesel Clean Fuel Standard/Policy (CFS) Clean Heat Standards Clean Power Plan (CPP) Clean Trucks Plan Clean Water Act climate change Climate Change Adaptation climate change effects climate change mitigation climate legislation climate smart/conservation agriculture closed-loop system Clostridium thermocellum cloud point clover cmelina CNG Conversion kit co co-generation co-location Co-op Extension co-operative co-processing co-products CO2 Electrolysis CO2 neutral fuels CO2Removal Certificates (CORCs) coal Coal and Biomass to Liquid (CBTL) Coast Guard coastal habitat conservation coastal hay cobalt cock's foot coco coco methyl ester (CME) cocoa Coconut coffee coffee cherries coffee grounds coffee pulp cold flow cold-tolerance college/university Colombia Colorado combined heat and power (CHP) Comment Request commercial flights commercialization commissioning commo Commodity Credit Corporation (CCC) Commodity Futures Trading Commission (CFTC) commodity trading common reed Community activity community college Community involvement/engagement community scale Community Wood Energy Program competition compliance compliance credits compost Compressed Natural Gas (CNG/R-CNG/bioCNG) compression ratios compression-ignition engine computer simulation concrete condensate Congo Congressional Budget Office (CBO) Connecticut Conservation Reserve Program (CRP) Conservation Stewardship Program (CSP) construction and demolition waste/debris consumer education contamination contest contrails conversion technology Cook Islands cook stoves cooking fuel cooperatives COP21 COP22 COP23 COP24 COP25 COP26 COP27 COP28 COP29 COP30 copper coppice cordgrass corn bran Corn cobs corn ethanol corn fiber corn growers corn harvest corn kernel corn meal corn oil corn oil/distillers corn oil (DCO) corn prices corn stalks corn stover corn supply corn surplus corn syrup corn-based products corn/maize Corporate Average Fuel Economy (CAFE) standards corporate social responsibility corrosion corruption CORSIA (Carbon Offsetting and Reduction Scheme for International Aviation) cosmetics Costa Rica cotton cotton seed hulls cotton seed oil cotton stalk cottonwood Council on Environmental Quality county cover crops cow rumen cracking Crambe crassulacean acid metabolism plants (CAM) crimes criteria pollutants Croatia crop crop insurance cropland croton crowdfunding crude oil Cuba cup plant cuphea currency/foreign exchange policy curriculum cusi cutworm caterpillars cyanobacteria (blue-green algae) cylindro Cyprus Czech Republic d D-3 (cellulosic) RINs D-4 (bio-based diesel) RINs d-5 D-5 (advanced biofuel) RINs D-6 (renewable fuel) RINs D-7 RINs (Cellulosic Diesel) D-8 (proposed) RINs D20 (20%DME) D5 (5%DME) dairy waste dandelion DARPA date kernel oil date palm date palm pits date palm waste Dates DDGS (distiller’s dried grains with solubles) dead zone decanol decision-support tool deep water drilling Defense Logistics Agency (DLA) Defense Production Act deficit definitions deforestation defossilization Dehydration Delaware DeltaWing demonstration demonstration scale/unit Denmark densify density Department of Agriculture (USDA) Department of Commerce Department of Defense (DOD) Department of Education Department of Energy (DOE) Department of Health and Human Services Department of Homeland Security Department of Justice Department of Labor Department of the Interior Department of Transportation (DOT) depolymerization depots dextrose dfdsffsfdfsf diatoms diesel Diesel Emissions Reduction Act (DERA) diesel fuel blendstock diesel prices Diesel R5 diesel with renewables diesel-range hydrocarbons diesel-to-biodiesel conversion diethyl ether digital Digital Biology diisobutylene (DIB) dilute acid hydrolysis pretreatment DIN 51605 DIN EN 15376 (Ethanol blending component) direct air capture direct injection direct ocean capture Direct Sugar to Hydrocarbon Conversion (DSHC) direct-to-fuel directed evolution dispense distillates distillation distilled biodiesel distilled palm methyl ester (DPME) distilleries distributed/centralized distribution distribution capacity distribution waiver diversification divestment DME/rDME (dimethyl ether)/renewable DME DMF (2.5-dimethylfuran) Dominican Republic double cropping drawdown Drones/Unmanned Aerial Vehicles (UAV) drop-in biofuels/hydrocarbons drought drought tolerant drought-resistant dry ice dual cropping Dubai duckweed e e-diesel e-LNG (synthetic/electro Liquified Natural Gas) e-methanol e-NG (synthetic natural gas) E. coli E0 E0 price E1 E10 E10 certification fuel E10 price E100 E100 conversion kit E11 E12 E13 E15 E15 price E15 pumps E2 E20 E20 price E20 pumps E22 E25 E25 pumps E27 E3 E30 E30 capable E30 certification fuel E30 optimized E30 price E30 pumps E35 E4 E40 E40 conversion kit E40 pumps E5 E5 price E50 E55 E6 E7 E70 diesel E75 E78 E8 E80 E85 E85 conversion kit E85 optimized engines E85 price E85 pumps E90 E92 E95 E97 E98 earthquakes East Africa Eastern Europe economic development Economic Development Administration economic modeling economic policy economics Ecosystems Services Ecuador ED7 (7% ethanol 93% diesel) ED95 education Education Series 3030 educational business private educational tour EERE efficiency egg shell Egypt El Salvador Electric aircraft Electric Car/Electric Vehicle (EV) electric car/Electric Vehicle (EV) Prices electric grid electricity electricity price electricity/power generation electricity/power transmission electrocatalysis electrochemical electrochemical cell electrofuels (e-fuels) electrofuels (e-fuels) prices electrolysis electrolytic cation exchange electromethanogenesis (ME) electrons Elephant grass/Napier grass elephants embargo eminent domain emissions emissions standards EN 15751 EN 15940 EN 16709 EN 228 EN 590 EN228 (standard pump gasoline) end user end-of-life Endangered Species Act (ESA) Energy Bill energy cane energy consumption energy crops energy density energy dominance energy grasses energy independence Energy Independence and Security Act of 2007 (EISA) Energy Information Administration (US EIA) energy law energy policy energy prices energy reserves Energy Return on Energy Invested (EROEI or EROI) energy security Energy Security Trust energy storage enforcement engine Engine Development engine problems Engine/Fuel Co-optimization engineering England enhanced oil recovery (EOR) entrepreneur environment environmental impact study (EIS) environmental justice/socially inclusive environmental policy Environmental Quality Incentive Program (EQIP) Environmentalists Enzymatic enzymatic conversion enzymatic depolymerization enzymatic hydrolysis enzyme production enzyme recycling Enzyme solicitation enzymes EPA (Environmental Protection Agency) EPACT (Energy Policy Act) Equatorial Guinea equipment eRINs/electric pathway Eritrea erosion control EROWI (Energy Return on Water Invested) ESG (Environmental Social Governance) esterification Estonia ETBE (ethyl tert-butyl ether) etha ethane ethanol ethanol benefits ethanol blend wall ethanol blended diesel ED ethanol blends/ethanol flex fuels ethanol emissions ethanol ether diesel fuel ethanol fire ethanol fuel cells ethanol hybrid ethanol pipeline ethanol prices ethanol production ethanol pumps ethanol tax ethanol terminal ethanol to gas ethanol tolerance ethanol-fueled aircraft Ethanol-to-Gasoline (ETG) ethanol/bioethanol ethanol/diesel ethanol/methanol synthesis ethanol2G Ethiopia Ethiopian mustard ethyl levulinate (EL) ethylbenzene ethylene ets eucalyptus Euglena European Emissions Trading System (ETS) European Union (EU) eutrophication executive order executive order--state Extended Range Electric Vehicle (EREV) externalities extremophiles f F Factor F-24 F-34 F-76 (Marine Diesel) F-T FAEE FAEE (fatty acid ethyl esters) Fair trade False Claims Act FAME (Fatty Acid Methyl Ester) Farm Bill Farm Bureau farm equipment farm policy Farm to Fleet Farm to Fly farmers farming farnesane farnesene Fats fecal sludge Federal Aviation Administration (FAA) Federal Bureau of Investigation (FBI) Federal Emergency Management Agency (FEMA) Federal Energy Regulatory Commission (FERC) Federal Highway Administration (FHWA) federal land Federal Railroad Administration Federal Reserve Bank Federal Trade Commission (FTC) Federal Transit Administration (FTA) feed Feed In Tariffs (FIT) feed prices Feedstock Flexibility Program for Bioenergy Producers feedstock logistics feedstock material feedstock prices feedstock storage feedstock terminal feedstock transportation Feedstocks fermentation ferry fertilizer fiber Fiji Financing Finland Fischer-Tropsch Synthetic Kerosene with Aromatics (FT-SKA) Fischer-Tropsch Synthetic Paraffinic Kerosene (FT-SPK) Fischer-Tropsch Synthetic Paraffinic Kerosene with Aromatics (FT-SPK/A) Fischer-Tropsch/FT fish feed fish oil fish waste fit for purpose Fixed Base Operator (FBO) flameleaf sumac flavors flax fleet turnover Fleets fleshings flex-fuel vehicles (FFV) flight tests Flightpath flixweed/tansy/herb-Sophia flood-prone soil Florida flue gas FOG (Fats/Oils/Grease) follow-the-crop food Food and Agriculture Organisation (FAO) Food and Drug Administration (FDA) food and fuel food policy food prices food processing waste food safety food security food vs biomaterials/bioplastics food vs fuel food waste for forage forage sorghum forecasts foreign oil Foreign Policy forest Forest Biomass for Energy forest biotechnology forest residue/waste Forest resources Forest Service forestry forklifts Formate formic acid fossil carbon fossil fuel Frace fracking fractionation fragrance France franchise fraud free fatty acids (FFA) Freedom of Information Act (FOIA) freight/cargo French French Guiana fructose fruit FT-SKA fuel fuel additives fuel cell electric vehicle (FCEV) fuel cells fuel economy fuel efficiency fuel injection fuel mixtures fuel molecules fuel oil fuel performance fuel prices Fuel Quality Directive (FQD) fuel registration Fuel Retailers fuel testing fuel transportation fuel use fuel wholesaler fully burdened cost fund funding fungus/fungi Furanics furfural fusel oils Future Farmers of America (FFA) Gabon gallium Gambia games gas prices gas tax/highway user fee gas-to-liquid (GTL) gasification gasoline gasoline baseline gasoline consumption gasoline mandate gasoline markets gasoline price gasoline-range hydrocarbons Gemany General Services Administration general waiver authority generators genetically engineered yeast cells genetically enhanced microbes genetically modified organism (GMO) genome Georgia Georgia (country) geothermal German Germany Gerrmany Ghana GHG (Greenhouse Gas Emissions) GHG (Greenhouse Gas Emissions) Intensity giant cane giant kelp Giant King Grass Giant Reed/Arundo GIS glass tubing gliricidia sepium global rebound effect Global South global warming global warming potential glucose glycerin glycerin standards glycerol goats gorse Governance practices) Government Accountability Office (GAO) government investment government resources government subsidies grain sorghum/milo grain speculators grains GRAND-AM grants grants-local grants-state grapefruit grapes graphene graphite GRAS (generally regarded as safe) Grasses grasses grasshoppers grease Great Green Fleet Great Lakes Greece green bonds green chemistry Green Deal EU green economy green house facility Green Jobs Green New Deal Green Racing Green Recovery green/black economy Greenland GREET Greenhouse Gases Regulated Emissions and Energy Use in Transportation Model Grenada gribble growers gua beans Guam guar Guatemala guayule Guerbet reaction Guinea Guinea Bissau Gulf states gulmohar Gumweed (grindelia squarosa) Guyana GWP gypsum h Haiti Halophytes harvest site processing harvesting Hawai'i hay hazardous waste hazelnut HBIIP Higher Blends Infrastructure Incentive Program HDCJ HDO-SAK (hydro deoxygenated synthetic aromatic kerosene) health health benefits health effects heat of combustion heat of vaporization heat-tolerance heather heating oil/fuel Heavy Duty Truck Rule heavy duty vehicles (HDV) hedging HEFA (Hydro-processed esters and fatty acids) HEFA50 helicopters hemicellulace enzymes hemicellulose hemicellulosic sugars Hemp hemp oil hemp seed herb hexanol HFO (Heavy Residual Fuel Oil) hibiscus high blend renewable fuels (HBRF) High Hydrogen Content Synthetic Paraffinic Kerosene (HHC-SPK) High Octane Fuel (HOF) High Octane Fuel Standard High Octane Gasoline (HOG) high octane low carbon (HOLC) fuel High Octane Vehicles (HOV) high performance regular high school project high sulphur fuel oil (HSFO) high-octane/low-carbon (HOLC) liquid fuels Highway Bill highway rights-of-way Highway Trust Fund history hog farmers hombayniya homogeneous-charge compression-ignition Honduras honey locust Hong Kong Honge tree nuts hops horticulture Housing and Urban Development (HUD) HPF (High Performance Fuels) HRJ (Hydrotreated Renewable Jet) human rights Hungary Hurricane Sandy HVO (Hydrotreated vegetable oil) HVO100 HVO20 HVO30 Hybrid aircraft hybrid buses hybrid locomotive hybrid ships hybrids hydrocarbon fuels Hydrocarbon-Hydroprocesed Esters and Fatty Acids (HC-HEFA-SPK) hydrodeoxygenation hydrodiesel hydrofaction hydroformylation hydrogen aircraft hydrogen carrier hydrogen combustion engines hydrogen fuel cells hydrogen leaks hydrogen pipeline hydrogen price hydrogen pumps/fueling stations hydrogen tax credit hydrogen terminal Hydrogen/Renewable Hydrogen Hydrogen/Renewable Hydrogen Price hydrogenase hydrogenation hydrogenation-derived renewable diesel (HDRD) hydrogenolysis hydropower Hydroprocessed fermented sugars to synthetic isoparaffins (HFS-SIP) hydroprocessing hydropyrolysis hydrothermal carbonization hydrothermal gasification hydrothermal liquefaction (HTL) hydrothermal treatment Hydrotreated renewable diesel (HRD) hydrotreating hydrotreatment hydrous ethanol hypoxia zone Iceland Idaho Illinois Illiois illuppai ILUC (Indirect/Induced Land Use Change) import/export incinerator ash India Indian beech tree Indian grass Indiana indirect effects indirect emissions indirect fuel use change indium Indonesia industrial burners industrial ethanol industrial gases industrial sugars industrial waste industrial waste gases IndyCar infographic Infrastructure inhibitors innovation insecticide/pesticide insects insurance integrated biorefineries integrated food/energy systems intellectual property Inter-American Development Bank inter-crop 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