Which document's VIN must match the VIN on the vehicle?

The correct answer highlights the requirement for both the insurance card and the registration certificate to display a matching Vehicle Identification Number (VIN) with that of the vehicle being inspected. The VIN is a unique code assigned to each vehicle, serving as its fingerprint.

When inspecting a vehicle for safety, it is crucial to ensure that all documentation corresponds accurately to the vehicle itself. The registration certificate is particularly important, as it serves as proof of ownership and registration with the state, thereby necessitating the VIN on the document to match that on the physical vehicle. Similarly, the insurance card is vital for showing that the vehicle is covered under an insurance policy and must also accurately reflect the VIN to validate the policy's applicability to that specific vehicle.

Matching VINs across these documents helps prevent fraud and ensures that the vehicle is legally registered and insured, thereby contributing to overall road safety and compliance with state regulations. This reinforces the integrity of vehicle identification and helps law enforcement and other authorities verify vehicle details quickly and accurately.