TOPICS:16hr2020 Report to Congress (“Report”)April 14average day-night level standardBarbara LichmanCDNLCNELconcentrated noise impact pointsLAeqLdenLmaxNAnoise metricsPart 150SELTA Posted By: Cynthia Schultz June 16, 2020 Share this article: Missed opportunity or necessary avoidance? Cynthia Schultz, PE While it would be easy to take the FAA to task for ignoring the congressional mandate, it is not so easy