On December 09, 2015, the ICAC submitted comments to the EPA on the Quad J portion of the EPA's proposal of Revisions to Test Methods, Performance Specifications, and Testing Regulations for Air Emission Sources (80 FR 54146). The comments were led by Dr. Peter Zemek, MKS Instruments, Inc., with revisions by Matthew Swanson, California Analytical Instruments, Inc.: Gas Analyzers. View the comments here.