DEEP: Final Cross-State Air Pollution Rule (CSAPR)

Final 2011 Cross-State Air Pollution Rule (CSAPR)
In 2011 the U.S. EPA finalized the Cross-State Air Pollution Rule (CSAPR) in response to a 2008 court decision remanding the Clean Air Interstate Rule (CAIR) to EPA.  CSAPR requires a total of 28 states (not including Connecticut) to reduce annual SO2 emissions, annual NOx emissions and/or ozone season NOx emissions to assist in attaining the 1997 ozone and fine particulate matter (PM2.5) and 2006 PM2.5 National Ambient Air Quality Standard (NAAQS). 
On August 21, 2012, the D.C. Circuit Court of Appeals vacated CSAPR and remanded it to EPA.  The court ordered EPA to continue administering CAIR (also see Regulations of Connecticut State Agencies section 22a-174-22c) pending the development of a valid replacement.  On June 24, 2013, the U.S. Supreme Court granted the March 29, 2013 U.S. petition asking the Court to review the 2012 decision on CSAPR.  For more information on CSAPR, visit EPA’s Cross-State Air Pollution Rule web page.
On January 7, 2011, EPA issued a third Notice of Data Availability (NODA) to provide information and opportunity to comment on alternative allowance allocation approaches for potential use in the Transport Rule.  CT DEEP's comments on the this NODA are provided at the following link:
On October 27, 2010, EPA issued a second NODA proposing emissions inventory changes for further EPA modeling planned in support of finalizing the Transport Rule.  CTDEEP's comments on the second NODA are provided at the following link:
EPA's original NODA in support of the proposed Transport Rule was published on September 1, 2010.  Comments to the EPA were provided by CT DEEP on the following links:
               Attachment A: NEEDS version 4.10 comments (5.7mb XLS)
The CT DEEP provided comments to EPA on the proposed Transport Rule, as linked below.
Links to each section:
Content last updated September 9, 2013