The Compressor and Pump Station Technical Committee continues to develop tools and methods to continually assess the performance of engines used at compressor stations. These tools are intended to be used to verify the operation of the engine is operating within its permitted emission limits and to help identify underlying causes of engine degradation in performance. The current efforts of the technical committee are focusing on how these methods can fit into an emissions compliance framework. For more information, contact Gary Choquette at gchoquette@prci.org.