The Tailoring Rule primarily targets sources of combustion, but it may affect other sources that are modifying or applying for new Permits to Install (PTIs) and Renewable Operating Permits (ROPs). If you have emissions of any of the following pollutants, you may be affected by the Tailoring Rule:
- carbon dioxide (CO2),
- hydrofluorocarbons (HFCs),
- methane (CH4),
- nitrous oxide (N2O),
- perfluorocarbons (PFCs), and
- sulfur hexafluoride (SF6).
The Tailoring Rule may also affect sources that received permits but have not begun construction by July 1, 2011.
The Tailoring Rule may also affect sources that received permits but have not begun construction by July 1, 2011. Below are some additional links that provide more information about the Tailoring Rule.
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EPA Fact Sheet This fact sheet from the Environmental Protection Agency (EPA) provides a summary of the rationale, legislative highlights and significant dates, and other pertinent information related to the Tailoring Rule. |
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Final Rule This is the final Tailoring Rule as it appeared in the Federal Register, Vol. 75, No. 106, on Thursday, June 3, 2010. |
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July Transition Issue Beginning July 1, 2011, any source that received a permit to install for a minor source may become subject to Prevention of Significant Deterioration (PSD) under the Tailoring Rule if:
- it has potential greenhouse gas (GHG) emissions that equal or exceed 100,000 tons per year (tpy) on a CO2e basis, and - 100 / 250 tpy on a mass basis, and - it has not begun actual construction by July 1, 2011. |
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EPA Permitting Guidance provides the basic information that permit writers and applicants need to address GHG emissions in permits. Available guidance includes white papers, training videos, Best Available Control Technology examples, tools for estimating GHGs, biomass deferral, and currently proposed legislation. |
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Biomass Deferral On January 12, 2011, EPA announced its plan to defer, for three years, greenhouse gas (GHG) permitting requirements for carbon dioxide (CO2) emissions from biomass-fired and other biogenic sources. EPA has now also proposed a rule, developed a fact sheet, and developed guidance on how to address BACT for CO2 emissions from bio-energy sources. |
"What do 'CO2e basis' and 'mass basis' mean?"
"My facility emits one or more of these pollutants. What do I do?"
"I wont begin actual construction before July 1, 2011. What do I do?"
Please contact Jim Ostrowski at (517) 241-8057 or at OstrowskiJ2@michigan.gov for questions regarding the GHG information on these pages.
To report technical problems with this web page, please contact the Air Quality Division Webmasters.
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