How is the trailer safety chains be attached to the towing vehicle?

Trailer safety chains should be attached to the towing vehicle using the designated attachment points, typically located on the hitch. The chains should be crossed under the trailer tongue to create a cradle, which helps prevent the trailer from dropping to the ground if it becomes unhitched. Ensure that the chains are securely fastened, allowing enough slack for turning, but not so much that they could drag on the ground. Always check local regulations for specific requirements regarding safety chain use.