Question

If you are preparing to tow a small trailer behind your vehicle, you are required by law to make sure the trailer has

A trailer hitch that can be locked to your vehicle hitch with a padlock.

A spare tire and a tool kit with enough tools to change a tire.

At least one brake light if the trailer hides the brake lights on your vehicle.

Answer 1

Hitch and light all ya need,

Answer 2

Trailer Hitch & One Brake light

Step-by-step explanation:

The Trailer Hitch is obvious, it's used to keep the trailer in place so it won't get de-tached from the truck itself, potentially endangering other Motorists, and causing damage.

The Brake Light is required by law so other cars are able to indicate you are attempting to stop (without them, traffic accidents), if a trailer is 30" wide then you only need one.