Are 911 calls selectively routed to the correct PSAP based on the MSAG?

The statement is true because 911 calls are indeed selectively routed to the appropriate Public Safety Answering Point (PSAP) based on the Master Street Address Guide (MSAG). The MSAG is a critical element in the emergency response system that contains information about the street names, address ranges, and associated emergency services of a given area.

When a 911 call is made, the system checks the caller's address against the MSAG to determine which PSAP is responsible for handling that particular emergency. This process ensures that the call is directed to the right location, allowing first responders to arrive at the scene more quickly and efficiently. Correct routing is vital for public safety, ensuring that emergencies are addressed with the urgency and accuracy they require.