This chapter shall not apply to the following:
1. The emission of sound for the purpose of alerting persons to the existence of an emergency. This is to include the public address systems.
2. The emission of sound in the performance of emergency work.
3. Rail and air transportation and public mass transportation vehicles.
4. The emission of sound from church bells, carillons, or chimes.
5. The emission of sounds from sound equipment made by students, employees or the general public while in attendance at any school-sponsored event or any City sponsored, hosted or funded event using sound equipment with approval from the City Manager.
6. The emission of sounds made by participants and observers of any parade that has been approved by the Council.
7. The sound made or caused to be made by City, school or State-owned or hired equipment or facilities for the conduct of City, school or State operations.
8. The emission of sound associated with the business operations of a company located on property zoned as retail, commercial or industrial during the hours in which the company conducts business operations to include loading and unloading at any time. This exception does not include amplified sound or music.