The general assembly finds that the “Emergency Communications District Law” has been successfully embraced by the vast majority of Tennessee counties, most of which have already initiated basic or enhanced 911 service and are developing or maintaining this lifesaving service in furtherance of the purposes stated in the law. The general assembly also finds that the establishment of emergency communications services for all citizens of the state will promote the public interest. The general assembly further finds that statewide wireless enhanced 911 service is in the public interest.