The Department of Environmental Quality adopted amendments to R 336.1401, R 336.1402, and R 336.1404 of the Michigan Administrative Code and new rules R 336.1401a, R 336.1405, R 336.1406, R 336.1407, and R 336.1420. These rules concern sulfur dioxide emissions from power plants. http://www.michigan.gov/documents/dleg/MR2_021508_225086_7.pdf pp. 2-6.