The Water Quality Control Commission has adopted amendments to 5 CCR 1002-33, Regulation No. 33, Classifications and Numeric Standards for Upper Colorado River Basin and North Platte River (Planning Region 12), 5 CCR 1002-37, Regulation No. 37, Classifications and Numeric Standards for Lower Colorado River Basin, and 5 CCR 1002-38 - 38.0, Classifications and Numeric Standards for South Platte River Basin Laramie River Basin Republican River Basin Smoky Hill River Basin. Changes become effective March 1, 2008. The Water Quality Control Commission has adopted amendments to 5 CCR 1002-33, Regulation No. 33, Classifications and Numeric Standards for Upper Colorado River Basin and North Platte River (Planning Region 12), 5 CCR 1002-37, Regulation No. 37, Classifications and Numeric Standards for Lower Colorado River Basin, and 5 CCR 1002-38 - 38.0, Classifications and Numeric Standards for South Platte River Basin Laramie River Basin Republican River Basin Smoky Hill River Basin. Changes become effective March 1, 2008. http://www.sos.state.co.us/CCR/RegisterContents.do?Volume=31&Month=2&Year=2008#.