Minnesota EQB Proposes Mandatory Environmental Review Threshold For GHG

The Minnesota Environmental Quality Board (EQB) has published its intent to adopt rules without a public hearing that would add a specific threshold number applying to greenhouse gas (GHG) emissions to the mandatory EAW category for air pollutants at part 4410.4300, subpart 15. The level proposed is a combined total of 100,000 tons per year of GHGs, expressed as carbon dioxide equivalents. The gases to which this threshold would apply are carbon dioxide; methane; nitrous oxide; hydrofluorocarbons (HFCs); perfluorocarbons (PFCs); and sulfur hexafluoride. Written comments on the proposed rule amendment are being accepted by EQB until February 23, 2011.

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