February 17, 2016 – In response to recommendations from state and tribal representatives, EPA has sent letters to state and tribal leaders outlining the area designations the agency intends to complete by July 2, 2016, for the 2010 primary standard for sulfur dioxide.

• Read Correspondence Between EPA and State Representatives
• Table Comparing State Recommendations and EPA Responses
• EPA Responses to Certain State Designations Recommendations:  Notice of Availability and Public Comment Period (PDF) (2pp, 212k) - Federal Register - March 1, 2016

• Map of Intended SO2 Designations - Feb 2016 (PDF)(1 pg, 260 K)