Final Volume Standards for 2020, 2021, and 2022

BioRefineries/Renewable Fuel ProductionBusiness News/AnalysisEnvironmental Protection AgencyFederal Agency/Executive BranchFederal RegulationOpinionsPolicyWhite House
June 03, 2022

(Environmental Protection Agency) On June 3, 2022, EPA finalized a package of actions setting biofuel volumes for the Renewable Fuel Standard (RFS) program for years 2020, 2021, and 2022, and introducing regulatory changes intended to enhance the program’s objectives.

Final Volume Requirements for 2020-2022 (billion gallons)
  2020 2021 2022
Cellulosic Biofuel 0.51 0.56 0.63
Biomass-Based Diesel 2.43** 2.43** 2.76
Advanced Biofuel 4.63 5.05 5.63
Total Renewable Fuel 17.13 18.84 20.63
Supplemental Standard n/a n/a 0.25

*All values are ethanol-equivalent on an energy consult basis, except for biomass-based diesel (BBD), which is biodiesel-equivalent.

**The 2020 and 2021 BBD volumes were established in previous RFS annual rulemakings.

EPA also established a 250-million-gallon “supplemental obligation” to the volumes finalized for 2022 and stated its intent to add another 250 million gallons in 2023, to address the remand of the 2014-2016 annual rule by the DC Circuit Court of Appeals in Americans for Clean Energy v. EPA.

To promote efficiency and opportunity in producing biofuels, this action also establishes a regulatory framework that allows biointermediates to be included in the RFS program, while ensuring environmental and programmatic safeguards are in place.

Additional Resources

READ MORE

RFA: Today’s Actions on RFS Restore Order, Provide Solid Foundation for Growth (Renewable Fuels Association)

EPA’s Forward-Looking Renewable Fuel Volumes for 2022 Ensure American Families Have Greater Access to Lower-Cost, Lower-Carbon Fuel at the Pump (Growth Energy)

EPA raises amount of ethanol that must be blended with gas (Associated Press)

EPA Trims Ethanol Fuel Mandate for 2020-21 But Raises It for 2022: Biden administration says changes are aimed at helping boost domestic fuel supplies  (Wall Street Journal)

EPA aims to get 'back on track' with finalized biofuel blending volumes (Politico Pro)

EPA sets growth in biofuel targets, maintains retroactive cut in latest rollout (Agri-Pulse)

EPA Finalizes RFS Rules (Energy.AgWired.com)

EPA delivers mixed results on biofuels blending requirements (The Hill)

EPA boosts biofuel volumes for 2022, lifting ethanol industry (E&E News)

EPA Takes Action to Reset and Strengthen the RFS Program (Environmental Protection Agency)

RFA APPLAUDS EPA MOVE TO INCREASE RVO, RESTORE RFS INTEGRITY (Brownfield Ag News)

Renewable Fuels Association: EPA actions on RFS restore order, provide solid foundation for growth (DRG News)

EPA Hikes RFS Volumes, Driving Biofuel Groups’ Praise, Refiners’ Criticism (Inside EPA)

RFA CEO Comments on EPA Final RFS Rules (Ag Newswire; includes AUDIO)

EPA tells refiners to raise biofuel blending by 9.5% (Bloomberg/Northweast Arkansas Democat Gazette)

EPA's RFS Volumes Include Ethanol Cuts -- Ethanol RFS Volumes Below 15B Gallons in 2020-2021, but Groups Praise 2022 Volumes (Progressive Farmer)

Biden's EPA finalizes ethanol, biodiesel blending requirements, requiring largest amount on record (Des Moines Register)

EPA releases renewable fuel volumes: Is the RFS “back on track” or was this “a missed opportunity”? (Biofuels Digest)

EPA announces RFS volumetric requirements, pleases industry (Fence Post)

HIGHEST-EVER ETHANOL MANDATE WILL BOOST HOMEGROWN BIOFUELS, EPA SAYS (Successful Farming)

Restoring order to RFS: biofuel groups are applauding EPA for finalizing renewable volume obligations (RFD TV; includes VIDEO)

EPA Clears Use Of RFS ‘Biointermediates’ But Resists Call To Ease Limits (Inside EPA)

Soybean Growers Praise EPA’s 2022 Biofuel Blending Requirements — and Waiver Denials (Grain.net)

New Biodiesel Levels Will Further Increase Food Prices: NRF (RTT News)

AD Biogas To RNG Update (BioCycle Magazine)

 

Excerpt from Renewable Fuels Association: The final regulatory actions taken today by the Environmental Protection Agency (EPA) bring order and certainty back to the Renewable Fuel Standard and provide a solid foundation for future growth in the production and use of low-carbon renewable fuels, according to the Renewable Fuels Association. The actions will also lead to lower gas prices for consumers and greater energy security, RFA said.

EPA today finalized a strong renewable volume obligation (RVO) for 2022, requiring the statutory volume of 15 billion gallons of conventional renewable fuel and 5.63 billion gallons of advanced biofuels. In accordance with a court order, the agency also finalized a supplemental requirement of 250 million gallons in 2022 to offset illegally waived volume from the 2016 RFS. In addition, EPA set the 2021 RVO for conventional renewable fuel at 13.79 billion gallons, based on the latest estimates of actual consumption. Finally, EPA finalized the denial of 69 pending small refinery exemption petitions, ensuring that all refiners are held accountable and equally obligated to blend lower-carbon, lower-cost biofuels.

“At long last, the RFS is being put back on track. Today’s actions by EPA and the Biden administration restore integrity and stability to the RFS program after several years of wanton mismanagement and abuse by the previous administration,” said RFA President and CEO Geoff Cooper. “The combination of a strong RVO for 2022, restoration of illegally waived volume from 2016, and a new direction for the SRE program puts the RFS program on solid footing for the future. We thank Administrator Regan and President Biden for honoring their commitments to implement the RFS in a way that is fair, transparent, and focused on growth.”

Cooper also noted that today’s package couldn’t have come at a more important time, as consumers are facing record-high gas prices driven by instability in global energy markets. “By requiring petroleum refiners to blend larger volumes of low-cost biofuels like ethanol, today’s actions will put downward pressure on gas prices and provide economic relief to American families facing record-high pump prices,” he said. “In the last few days alone, wholesale ethanol prices have been as much as $1.30 per gallon lower than gasoline, leading to significant savings at the pump for consumers of ethanol-blended fuels like E10, E15, and E85.”

The association today released an explainer documenting how ethanol reduces prices at the pump, due to its lower cost and the fact that it augments the overall fuel supply.

RFA also underscored the important role a robust RFS plays in enhancing energy security. “Ukraine is 5,000 miles away, but American consumers are feeling the economic impacts of war in Eastern Europe every time they pull up to the pump,” Cooper said. “This is a poignant reminder that the very purpose of the RFS is to increase domestic fuel production, diversify our fuel supply with lower-carbon alternatives, and reduce demand for petroleum imports. Just imagine how much higher gas prices would be without the addition of 15 billion gallons of low-cost ethanol to our fuel supply.”

The only blemish on EPA’s package of regulatory actions is the agency’s decision to reopen and retroactively lower RFS requirements for 2020, Cooper said. “While today’s package of actions collectively marks a major step forward for the RFS program, it isn’t perfect, and we remain disappointed by the approach EPA took on 2020. But we are committed to working with EPA and other stakeholders to continue moving the RFS program forward and growing the market for low-carbon renewable fuels like ethanol.”  READ MORE

 

Excerpt from Growth Energy:  Today, Growth Energy CEO Emily Skor released a statement in support of the U.S. Environmental Protection Agency’s (EPA) rulemaking under the Renewable Fuel Standard (RFS), which sets the 2022 Renewable Volume Obligation (RVO) for conventional biofuels at 15 billion gallons, a move that sets a baseline for strong future biofuel blending levels under the RFS, ensuring drivers have greater access to lower-cost, lower-carbon fuel at the pump.

“These last six months have been a rude awakening for those who have grown complacent about U.S. energy supplies. EPA’s 2022 renewable fuel blending requirements will deliver savings at the pump for working families, slash carbon emissions, and strengthen U.S. energy security by bringing more American renewable fuel into our fuel supply.

“In just the last few months, E15 has been a shield against skyrocketing fuel prices, saving drivers almost $0.60 per gallon in some areas while American biofuels cut greenhouse gas emissions by 46 percent compared to gasoline.

“We applaud President Biden and his EPA for this action, which will set the direction of total and advanced renewable fuel volumes for 2023 and beyond. By setting conventional implied 2022 RVO volumes at 15 billion gallons, coupled with restoring the first 250 million gallons that had been illegally waived in the 2016 RVO, EPA underscores the critical role biofuels play – and will continue to play – in mitigating climate change and lowering prices at the pump. Moreover, it sends a positive signal as the agency works through its new rule – “the Set” – that picks up where Congress left off and establishes multi-year renewable fuel blending requirements for 2023 and beyond.

“In addition to the 2022 volumes, today’s action from EPA halts all improper small refinery exemptions, a move that will return much needed certainty to the biofuels industry and the entire fuel supply chain.

“EPA does fail to address bipartisan concerns about volume requirements for the 2020 and 2021 RVOs. Nevertheless, we take the 2022 volumes as a strong signal of EPA’s commitment to getting the RFS back on track and we will remain vigilant in ensuring that volumes are met in a timely manner.”

Audio of Emily Skor’s statement is available hereREAD MORE

 

Excerpt from Environmental Protection Agency:  EPA announced several actions that will help provide a path for the sustained growth of renewable fuels and reinforce the foundation of the Renewable Fuel Standard (RFS) program. Together, these actions reflect the Biden Administration’s commitment to reset and strengthen the RFS, bolster our nation’s energy security, and support homegrown biofuel alternatives to oil for transportation fuel.

“At EPA, we are laser-focused on providing more options for consumers at the pump, and today we are taking steps to increase the availability of homegrown biofuels,” said EPA Administrator Michael S. Regan. “Today’s actions will help to reduce our reliance on oil and put the RFS program back on track after years of challenges and mismanagement. We remain committed to working with all RFS stakeholders to build on today’s actions and deliver certainty and stability in the RFS program.”

...

EPA’s actions will help reduce our dependence on oil and diversify our fuel supply by increasing production of domestically produced biofuels.  READ MORE

 

Excerpt from Biofuels Digest: Two big changes in this ruling

Supplemental Obligation. EPA also established a 250-million-gallon “supplemental obligation” to the volumes finalized for 2022 and stated its intent to add another 250 million gallons in 2023, to address the remand of the 2014-2016 annual rule by the DC Circuit Court of Appeals in Americans for Clean Energy v. EPA.

Intermediates now allowed. Action also establishes a regulatory framework that allows biointermediates to be included in the RFS program, while ensuring environmental and programmatic safeguards are in place.

...

Senator Deb Fischer of Nebraska
“It’s always one step forward, three steps back with the Biden Administration and biofuels.While the 2022 RVOs are significant, retroactively lowering the 2020 RVOs directly undermines these gains and contradicts Biden’s campaign promises. Making matters worse, the administration has decided to postpone small refineries’ compliance with the RFS, which hurts the integrity of the whole system.

“Cushioning these bad announcements with the release of long-overdue COVID assistance for producers that was available over a year and a half ago doesn’t change the facts. The President’s actions demonstrate he isn’t committed to supporting rural America or pursuing an all-the-above energy strategy.”

...

The Advanced Biofuels Association
“With this RVO ruling, the Biden administration has missed an important opportunity to prioritize advanced low carbon fuels that will help America achieve its climate ambitions and support American energy independence. We were, however, pleased to see the regulations permitting the use of biointermediates finalized in this rule, enabling our members using these processes to participate in the RFS program and increasing the volumetric potential of the advanced biofuels industry now and in the years to come.”

“Fortunately, the administration will have a chance to strengthen the development of America’s low carbon fuel industry and broaden our national supply of renewable fuel sources by setting a more progressive path under the forthcoming “Set” process. The ABFA strongly encourages the EPA to provide certainty to the advanced biofuels industry by finalizing the volume standards for 2023 before the end of 2022.

...

The Bottom Line: Action for 2023 soon

Sen. Deb Fischer of Nebraska spoke for all when she noted, “Looking to the future, it is imperative that the administration set robust 2023 RVOs in a timely manner. Doing so will ensure the country is leveraging the power of biofuels to lower costs at the pump and provide consumers with needed financial relief.”

RFS rulings never please everybody — if renewable fuels are happy, generally fossil fuel folks are grumbling, and vice-versa. This package from EPA had the distinction of also dividing the renewable fuels trade associations. Generally speaking, the ethanol sector was positive about 2022 with reservations over retroactive volumes. The heavy-duty sector no doubt is looking at the 10+ billion gallons in capacity that the sector intends to build soon and wonders if any when the volumes will be placed within the program.

Not all global RD/SAF capacity is going into the US, but the lion’s share of it is — in part driven by opportunities presented by Low Carbon Fuel Standards on the US West Coast. It’s worth keeping in mind that RD and SAF count as 1.7 gallons for RFS purposes, because they have higher energy density. To illustrate, 10 billion gallons of global RD/SAF capacity represents 17 billion gallons of RFS capacity. Given conventional ethanol’s 15 billion gallons, 2 billion gallons for US biodiesel and at least 2 billion gallons for the long-term opportunities for RNG, the RVOs are much lower than industry’s potential to build capacity. The annual RVO announce is becoming a brake on the decarbonization of US transportation instead of the accelerator it was intended by Congress to be.  READ MORE

 

Excerpt from BioCycle Magazine: “We understand why the final volumes are lower than anticipated, mostly because of actual year-to-date production, but we are concerned that the lower volumes undersell the true growth of the biogas industry,” says Patrick Serfass, executive director of the American Biogas Council (ABC). “There are several reasons to believe that the actual production coming soon will be significantly higher: new RNG projects have increased by 47% in the last year; on-farm projects have increased by 21%; and major companies have announced investments in new RNG projects totaling over $2 billion — twice the industry’s total investment in 2020. EPA’s final volumes only recognize a 13% growth from 2021-2022. We are hopeful that future volumes will anticipate the higher growth we see from American biogas fuel providers and developers.”

Serfass references an industry assessment released by Energy Vision in March 2022, which identified 230 operational projects in 2021 that were producing enough fuel to displace nearly 574 million gallons of diesel fuel. The assessment also identified 108 projects under construction last year, a portion of which have either started RNG production or will be producing RNG in 2022.

...

The final rule also codified revisions to the definition of an agricultural digester to clarify that only animal manure, crop residues, and/or separated yard waste with an adjusted cellulosic content of at least 75% can be processed in such a digester in order to generate D3 RINs. (RINs are the currency of the RFS and are used by obligated parties as a compliance mechanism to meet the annual RVO mandate.) Food waste is categorized as a non-cellulosic fuel, i.e., it does not have a cellulosic content of at least 75%. “Food waste is essentially protein, sugar and fat,” notes Maureen Walsh, ABC’s federal policy director. “If an agricultural digester takes food waste as an input, it would have to go through a very rigorous and expensive testing process to prove it meets the adjusted cellulosic content of 75%.” The final rule includes a list of the feedstocks that agricultural digesters can process to have an adjusted cellulosic content of at least 75%.   READ MORE

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(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 interactive map intercropping internal combustion engine (ICE) internal combustion engine (ICE)/gasoline engine ban International international balance of payments International Council on Clean Transportation (ICCT) International Energy Agency (IEA) International Maritime Organization (IMO) International Monetary Fund (IMF) International Organization for Standardization (ISO) International Renewable Energy Agency (IRENA) International Sustainability and Carbon Certification model(ISCC) International Trade International Trade Administration International Trade Commission Internships inulin invasive species Investing investment tax credit Invvesting ionic liquids Iowa IPCC Intergovernmental Panel on Climate Change Iran Iraq Ireland iridium iron iron oxide IRS (Internal Revenue Service) IS 1460 ISO 8217 (marine distillate fuel standard) ISO 9000 isobutanol isobutanol price isobutanol pump price isobutene isobutylene isomerisation isooctane isooctene isopropanol Israel Italy Ivory Coast JAA jackfruit Jamaica jamelão Japan jatobá Jatropha Jersey Jerusalem artichoke jet jet A Jet A-1 jet B Jetfuel (Sustainable Aviation Fuel (SAF)) Jimmy Carter Jobs Joint Office of Energy and Transportation jojoba Jordan JP-10 JP-4 JP-5/NATO F-44 JP-8/NATO F-34 juniper Just A MInute Just Transition jute K-12 Education Kabakanjagala kalanchoe kamani Kans grass Kansas Karanja Kazakhstan kelp Kemiri Sunan kenaf Kentucky Kenya kerosene ketones kinggrass Kiribati knotweed Knowledge Discovery Framework Korea Kosovo kudzu kukui nut kulpa kusum Kuwait Kygryzstan labels labor policy Labrador lactic acid lactose Lake County lamp oil land ownership land prices land rights land subsidence land tenure land transfer land use land use change land use policy landfill methane Landfills landscape Laos Latin America Latvia LCFS (Low Carbon Fuel Standard) lead Leadtree leaf ant Lebanon lecithin legislation Legislation-Federal 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Nevada New Brunswick new fuel approval New Guinea New Hampshire New Jersey New Mexico New South Wales New York New Zealand Newfoundland Newfoundland and Labrador next generation biofuels next generation vehicles NHRA drag racing Nicaragua nickel Niger Nigeria nipa sap nitrate leaching nitrates nitrogen Nitrogen fertiliser nitrogen starvation nitrous oxide (N2O) Niue NO2 noodles nopal North Africa North America North Carolina North Dakota North Korea Northeast northern catalpa Northern Ireland Northern Territory Northwest Territories Norwary Norway Nova Scotia NOx (nitrogen oxides) noxious weeds nuclear Nunavut nut shells nutraceuticals nutrient credit trading nutrient management nutrients nutrition oak oat hulls oat straw oats Obligated Parties/Point of Obligation (PoO) ocean-based energy Oceania octane octane price/value octanol Office of Energy Efficiency and Renewable Energy Office of Management and Budget (OMB) Office of Science and Technology Policy Office of Science and 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Private Investment Corporation overview overview/survey course owa oxygen oxygenate ozone Pakistan Palau palm palm biomass palm fatty acid distillate palm fiber palm fronds palm kernel palm kernel oil palm kernel shell palm oil Palm Oil Methyl Ester (PME) palm oil mill effluent (POME) palm oil prices palm trunk sap palm waste Paludiculture/peatland cultivation Panama pandas panic grass papaya paper Papua Indonesia Papua New Guinea paraffins Paraguay Paris Agreement parity partial waiver particulates pasture land Patent and Trademark Office (PTO) patents pathways Paulownia paulownia tree payments peach shell peaches peak oil peak oil demand peanuts/groundnuts peas pectin peela kaner pellet pellets Pennsylvania pennycress/stinkweed pentane pentanol pentose pequi perennial grains perennial grasses Performance permitting Peru pest-tolerance pesticide-tolerance pests pet food petition petroleum pharmaceuticals phase separation Philippines phosphorus photobioreactor photoelectrocatalysis 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RNG tax credit roadmap rocket fuel Romania RON (Research Octane Number) rosin rotation crops Roundtable on Sustainable Biomaterials (RSB) royalties RP-1 RTP (rapid thermal processing) rubber rubber seeds rumen ruminants rural development Rural Energy for America Program (REAP) Rural Energy Self-Sufficiency Initiative Rural Renewable Energy Pilot Program rushes Russia Russian olive rutabaga Rwanda ry rye Rye grass rye straw s saccharification SAF pipeline SAF10 SAF30 SAF40 SAFc (Sustainable Aviation Fuel certificates) Safer and Affordable Fuel Efficient Vehicles (SAFE) safety safflower sago pond weed SAIC sal tree Salicornia salt water salt-tolerant saltbush saltcedar Samoa Sanctions Santa Monica sardine oil Saskatchewan Saudi Arabia sawdust scale up Scandinavia scholarships/fellowships Science Advisory Board (SAB) Science Based Targets initiative (SBTi) Science Policy scooters Scotland scum sea level rise seaports seashore mallow seawater seaweed cultivation Seaweed/Macroalgae 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