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October 06, 2015

Ethanol and Other Biomass Plants No Longer Exempt from Carbon Dioxide Emission Limits: D.C. Circuit Vacates EPA's Three-Year Deferral for Biogenic CO2 Sources

In a decision that will impact the ethanol and biomass industry, among others, the D.C. Circuit Court of Appeals vacated the Environmental Protection Agency (EPA)'s biogenic deferral rule. The deferral rule was EPA's attempt to delay for three years the Clean Air Act (CAA) permitting requirements for sources of biogenic carbon dioxide emissions, including ethanol plants. Biogenic carbon dioxide emissions are defined in the deferral rule as emissions “directly resulting from the combustion or decomposition of biologically-based materials other than fossil fuels and mineral sources of carbon.” Deferral for CO2 Emission Bioenergy and Other Biogenic Sources Under the Prevention of Significant Deterioration (PSD) and Title V Programs, 76 Fed. Reg. 43,490, 43,493 (July 20, 2011).

In 2011 EPA explained the purpose of the rule as providing the agency three years to research the actual impacts of biogenic carbon dioxide emissions on the atmosphere, considering the total carbon lifecycle. From a policy perspective, the deferral would prevent the CAA permitting requirements from stifling the construction or operation of potentially beneficial energy generation, manufacturing or other facilities that rely on non-fossil fuel and/or renewable resources which, when processed or burned, create biogenic carbon dioxide emissions. As finalized, the deferral rule was optional, each state could decide whether or not to incorporate the deferral into its State Implementation Plan (SIP).

Examples of biogenic CO2 emissions include, but are not limited to:

- CO2 generated from the biological decomposition of waste in landfills, wastewater treatment or manure management processes;

- CO2 from the combustion of biogas collected from biological decomposition of waste in landfills, wastewater treatment or manure management processes;

- CO2 from fermentation during ethanol production;

- CO2 from combustion of the biological fraction of municipal solid waste or biosolids;

- CO2 from combustion of the biological fraction of tire-derived fuel; and

- CO2 derived from combustion of biological material, including all types of wood and wood waste, forest residue, and agricultural material.

When EPA promulgated the deferral rule, it relied on three doctrines of administrative law -- the de minimis, one-step-at- a-time, and administrative necessity doctrines -- to insert flexibility into otherwise rigid congressional mandates to require CAA permits for sources that exceed permitting thresholds. Environmental groups challenged the deferral rule and claimed it was arbitrary and capricious and contrary to the mandates of the CAA. The court agreed that EPA's action was arbitrary and capricious because the agency provided no legal justification to rely on those three administrative doctrines. First, in its own legal brief, EPA acquiesced that its reliance on the de minimis doctrine was flawed. Second, the Court found the one-step-at-a-time doctrine

inapplicable because reliance on that doctrine requires the rule at issue to be the first step in achieving full compliance with the congressional mandate, and EPA utterly failed to articulate what "full compliance" with the CAA mandate would be. The Court explained, "we simply have no idea what EPA believes constitutes 'full compliance' with the statute. In other words, the deferral rule is one step towards . . . what? Without a clear answer to that question, EPA has no basis for invoking the one-step-at-a-time doctrine." Finally, the Court rejected EPA's reliance on the administrative necessity doctrine because the Court found EPA failed to demonstrate that it would be impossible to attain the CAA mandates, and because the agency did not carve out the narrowest of exemptions for biogenic emission sources, as the doctrine requires.

Importantly, the Court did not determine whether the three-year deferral was in fact contrary to the CAA mandates.

The Court of Appeals decision is significant because the effect of a vacatur is that, legally, it is as though the rule never existed. That means, facilities that have relied upon the deferral to construct or modify a source of biogenic carbon dioxide emissions without obtaining a CAA permit now face significant regulatory uncertainty with respect to their compliance status. Equally as important are those facilities that established construction plans and secured financing for a project that may now require a CAA permit and the imposition of new, different, more stringent and likely more expensive pollution control technology.

If this rule affects a constructed facility or proposed project at your facility, we recommend you seek legal advice to determine the most appropriate next steps.



About this Author

Todd E. Palmer Michael Best Friedrich LLP

Mr. Palmer's clients benefit from his unique experience as both a lawyer and technical consultant. During the last 19 years, Mr. Palmer has relied on his varied experience to assist clients representing numerous industries, including petroleum refineries, automobile manufacturers, electric utilities, mining companies, defense contractors, aerospace companies, paper manufacturers, printers, construction contractors, agricultural operations, and commercial transporters.

peter j. martin, partner, corporate, business law, michael best law firm

Porter J. Martin is a corporate partner in the Madison office of Michael Best and Friedrich, LLP. Mr. Martin is a founding member of Michael Best’s Renewable Energy team and represents a number of companies in the renewable energy industry. Mr. Martin’s practice encompasses acquisitions and divestitures, project development and construction, corporate restructuring, equity and debt financing, project contracts, input and output agreements, and other general corporate issues. In addition to his renewable energy clients, Mr. Martin represents manufacturing and technology based companies as well as early stage companies.