911 Dispatcher Practice Test 2025 – Comprehensive All-in-One Guide to Exam Success!

When verifying a driver's identity, the most reliable and specific piece of information required is driver's license information. This includes details such as the driver's license number, expiration date, and the issuing state. A driver's license serves as a government-issued form of identification that confirms not only identity but also eligibility to operate a vehicle. It includes a photo, which helps to match the physical identity of the individual, adding an extra layer of verification.

In contrast, while a social security number is important for many identification purposes, it is not typically used in the immediate verification of a driver's identity on the road. Vehicle registration numbers pertain more to the vehicle itself rather than the driver and do not confirm identity. Tax identification numbers serve a different purpose focused on taxation and financial matters and are unrelated to driver's identity verification. Thus, driver's license information stands out as the most essential element in this context.