HB 476 -- Noise Levels for Lambert-St. Louis International Airport Co-Sponsors: Dempsey, Smith (14), Zweifel, Spreng This bill establishes maximum noise exposure standards for Lambert-St. Louis International Airport. The airport will be required to install and operate a noise monitoring system. The bill spells out the particular requirements of the monitoring system, the actual noise exposure levels considered in violation, and the enforcement process for certain violations. The bill has an effective date of January 1, 2004.Copyright (c) Missouri House of Representatives