4 Pa. Code § 120b.101
The act is designed to provide a toll-free telephone number 911 for individuals within this Commonwealth to gain rapid, direct access to emergency aid. The number shall be provided with the objective of reducing response time to situations requiring law enforcement, fire, medical, rescue or other emergency service. The authority and responsibility for the creation and implementation of a plan establishing, operating and maintaining adequate facilities for answering emergency calls and dispatching a proper response to a caller's needs shall be vested in the county government. County governments are encouraged to develop and implement a 911 emergency communication system that will meet the specific needs of the county and take maximum advantage of the integration of communications equipment and personnel to minimize costs and effect a more rapid response to emergency situations. County governments are encouraged to develop enhanced 911 system plans to the greatest extent possible. The development of county plans that limit the number of PSAPs and dispatch centers to the minimum necessary to meet the guideline requirements and to minimize costs to the public shall be encouraged.
4 Pa. Code § 120b.101