The Energy Institute has conducted a comprehensive analysis of state comments regarding EPA’s proposed regulations on new power plants. Our guide summarizes the 12 most common and significant concerns expressed from states, demonstrating the breadth and severity of concerns. The concerns are summarized in the first section of the report, followed by representative comments from states on each area. Also available is an Excel worksheet of notable comments filed by states and stakeholders. Comments filed by official state entities are shaded in yellow, while comments filed by members of the Partnership for a Better Energy Future—a coalition of nearly 200 groups co-chared by the Chamber—are shaded in beige.