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Clean Air Markets

Progress Reports

2012 Progress Reports

Each year EPA releases reports summarizing and evaluating progress under both the Clean Air Interstate Rule (CAIR) and the Acid Rain Program (ARP). These reports show the combined effect of the programs on power sector emissions of SO2 and NOx and the resulting benefits through 2012.

2012 ARP and CAIR at a Glance

CAIR and ARP Annual SO2 Emissions: 3.3 million tons (68 percent below 2005)

CAIR Ozone Season NOx Emissions: 514,000 tons (37 percent below 2005)

CAIR and ARP Annual NOx Emissions: 1.7 million tons (53 percent below 2005)

Compliance: Perfect compliance for all facilities reporting to the CAIR and ARP programs

Emissions, Compliance, and Market Analyses

Published December 2013

Coal train

Read the full report. | Download as PDF (1.6 MB).

The first report presents 2012 data on combined emission reductions and compliance results for CAIR and the ARP as well as some historic emissions data from the NOx Budget Trading Program (NBP). It includes state-level emission reductions and trends, emission monitoring information, compliance details and analysis of market activity.

Environmental and Health Results

Published May 2014

Lakeside photograph

Read the full report. | Download as PDF (1.6 MB).

The second report evaluates the effects of these emissions reductions programs through improvements in air quality. It summarizes significant benefits to human health, reductions in acid deposition, and trends in recovery from acidification in fresh water lakes and streams.

CAIR, ARP, and NBP States

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CAIR, ARP, and NBP States

Source: EPA, 2013

Historical Reports

landscape imageThis section provides previously released reports for EPA’s Acid Rain Program, Clean Air Interstate Rule, NOx Budget Trading Program, and Ozone Transport Commission. Beginning in 2010, CAMD released combined reports for the ARP, CAIR and the NBP because emissions reductions of SO2 and NOx from the power sector were achieved by all three programs concurrently. Prior to 2010, individual reports for each program were released.

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