Which condition would lead to the rejection of a vehicle's windshield wipers?

The condition that would lead to the rejection of a vehicle's windshield wipers is when the rubber wiping element is damaged or torn. This is critical because intact wiper blades are essential for maintaining visibility while driving in adverse weather conditions, such as rain or snow. If the rubber is damaged or torn, it can significantly impair the wipers' ability to effectively clear water or debris from the windshield, thus posing a safety risk.

Visibility is a key factor in safe driving, and wipers must be in optimal condition to fulfill their function. An inspection that identifies damaged or torn wiper elements indicates that the vehicle does not meet safety standards, warranting rejection during the inspection process.