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Carbon Emissions State Implementation Plans (SIPs)

Holland & Hart LLP

Tenth Circuit Ruling on Temporary Emissions in Colorado Will Have Widespread Impacts on Air Permitting in Western States

Holland & Hart LLP on

In a decision with implications for air permitting across the West, a divided three-judge panel of the Tenth Circuit Court of Appeals vacated and remanded EPA’s approval of Colorado’s state implementation plan (SIP) based...more

(ACOEL) | American College of Environmental...

Regional Haze Regulation: Visibility or climate change?

The goal of the Clean Air Act’s visibility program is to achieve natural visibility conditions by 2064 in federal Class I areas (basically, national parks). States must show that they are making “reasonable progress” towards...more

Mitchell, Williams, Selig, Gates & Woodyard,...

Regional Haze/Nitrogen Oxide: U.S. Environmental Protection Agency Proposal to Approve Arkansas State Implementation Plan Revision

The United States Environmental Protection Agency (“EPA”) issued a September 11th Federal Register Notice proposing to approve a revision to the Arkansas Regional Haze State Implementation Plan (“SIP”) submitted by the...more

Pierce Atwood LLP

Maine DEP Plans to Tighten Opacity Standards in Response to EPA SIP Call

Pierce Atwood LLP on

You think maintaining compliance with opacity standards is a challenge now – just wait. As anyone who has started a campfire knows, opacity (the density of the smoke) tends to be high when starting and ending fuel burning,...more

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