New draft Technical Assistance Documents

January 14, 2014

EPA published new draft Technical Assistance Documents for monitoring and modeling Sulfur Dioxide for use in Implementing the new 1-Hour SO₂ NAAQS Standard.  Click on the links below to view the documents.

SO₂ NAAQS Designations Modeling Technical Assistance Document

SO₂ NAAQS Designations Source-Oriented Monitoring Technical Assistance Document