Replaces everything after the enacting clause. Amends the Illinois Aeronautics Act. Provides that a certificate of approval shall be required for construction of a new runway at O'Hare International Airport that would result in more than 10 (rather than 8) runways being available for aircraft operations.
Replaces everything after the enacting clause. Amends the Illinois Aeronautics Act. Reinserts the provisions of the engrossed bill and adds language amending the Permanent Noise Monitoring Act. Deletes the definition of "Ldn". Defines "Annual community noise equivalent level" or "annual CNEL", "daily community noise equivalent level" or "CNEL", "noise exposure level", and "noise level". Requires permanent noise monitoring reports to include noise contour maps showing the 65 CNEL, 70 CNEL, and 75 CNEL zones around the airport.