American Electric Power (AEP) has announced plans to construct new emission control systems on Unit 1 and Unit 2 at the John E. Amos Plant at St Alban’s, West Virginia, USA. The new Selective Catalytic Reduction (SCR) system will reduce nitrogen oxide (NOx) emissions on each unit by between 85 and 90%. AEP is reducing NOx emissions as part of its efforts to comply with US Environmental Protection Agency (EPA) regulations. Construction will begin immediately, and the SCR units are expected to be in service by May 2004.