What is the required functioning condition for headlights during the inspection?

Headlights are a critical safety feature of any vehicle, and during a Maryland state inspection, it is essential that they are both operational and properly aimed. Operational headlights ensure that the driver can see adequately in low-light conditions, which is vital for safe driving. Proper aiming is equally important because misaligned headlights can cause glare for oncoming drivers, leading to potential accidents and reduced visibility on the road.

If headlights are fully operational but not aimed correctly, it can create dangerous driving conditions for both the vehicle owner and other drivers. Proper aiming ensures the light is directed where it is needed without being excessive or blinding to others. This dual requirement emphasizes the importance of both functionality and safety in vehicle operations, making the correct answer reflect a thorough understanding of vehicle inspection standards.