If a tail lamp lens is cracked but does not allow light to emit through the crack, will it fail inspection?

A tail lamp lens that is cracked but does not allow light to emit through the crack will not result in a failure during inspection. The primary purpose of the inspection regarding tail lamps is to ensure that they are functional and provide adequate visibility and signaling to other drivers. As long as the lens does not compromise the light output—meaning it still effectively illuminates and signals per regulations—a crack that does not allow light to pass through does not pose a safety hazard.

Damaged lenses can certainly be a concern, but the determination focuses on whether any light or visibility is obstructed. Cracks that do not emit light do not fall under the failure criteria, as they do not interfere with the operational aspects of the tail lamp. Hence, in this situation, it is acceptable for the lens to have a crack without leading to an inspection failure.