It has been shown to be in the public interest to shorten the time required for a citizen to request and receive emergency aid. The provision of a single, primary three-digit emergency number through which emergency services can be quickly and efficiently obtained will provide a significant contribution to law enforcement and other public service efforts by simplifying the notification of public service personnel. Such a simplified means of procuring emergency services will result in the saving of life, a reduction in the destruction of property, quicker apprehension of criminals, and ultimately the saving of moneys. Establishment of a uniform emergency number is a matter of concern and interest to all citizens. It is the purpose of this chapter to establish the number 911 as the primary emergency telephone number for use in communications districts created in municipalities or counties as herein provided.