When towing a trailer that obstructs your inside rearview mirror, what is required?

When towing a trailer that obstructs your inside rearview mirror, having two outside rear-view mirrors on both sides of the vehicle is necessary to ensure safe driving. These mirrors provide vital visibility around the trailer, allowing the driver to check for vehicles in adjacent lanes, monitor traffic conditions, and navigate turns and merges more safely.

Using mirrors on both sides of the vehicle compensates for the blind spots created by the trailer and improves overall awareness while driving. This requirement reflects a commitment to safety, as proper visibility can significantly reduce the risk of collisions while towing. Relying on a single mirror or no mirrors at all would leave substantial gaps in visibility, increasing the likelihood of accidents.