What type of information is requested when asking for vehicle registration?

When requesting vehicle registration, one of the primary pieces of information involved is the license plate number. This number serves as a unique identifier for the vehicle and is crucial for various administrative and legal purposes. It helps authorities quickly retrieve the registration details associated with that specific vehicle, including ownership, vehicle specifications, and legal status. The license plate also plays a significant role in enforcing traffic laws and regulations since it provides a clear reference to the vehicle in question.

While other information, such as the owner's address, type of vehicle, and traffic incident history, can indeed be associated with vehicle registration, the license plate number is the most direct and essential element specifically requested during the registration process. It clearly ties the vehicle to its registration record, making it the correct answer in this context.