What documentation must a vehicle owner have available during the Class D inspection?

The correct documentation that a vehicle owner must have available during the Class D inspection includes the current vehicle registration and proof of insurance. Having the current vehicle registration is crucial as it verifies that the vehicle is legally registered and that the owner is recognized by the state as the legal owner of that vehicle. This documentation confirms compliance with state registration laws, ensuring that the vehicle meets all legal requirements to be on the road.

Proof of insurance is equally important because it demonstrates that the vehicle is insured against damages and liability, which is required by law in most jurisdictions, including Maine. This protects both the driver and other road users in the event of an accident.

The other options do not meet the full requirements set forth for a Class D inspection. Solely having proof of insurance does not provide information about vehicle ownership or compliance with registration law. A driver's license and inspection sticker are not sufficient documentation on their own; while they are important for operating the vehicle, they do not confirm registration or insurance status. Similarly, while a vehicle owner's manual offers useful information about the vehicle, it is not a required document for the inspection process. Therefore, having both current vehicle registration and proof of insurance is essential for a successful Class D inspection.