A farm tractor being operated on a highway at night should be equipped with either two red lights on its rear, or:
A farm tractor being operated on a highway at night should be equipped with lights and/or reflectors to show other drivers that the tractor is there, even if the tractor would not otherwise be required to follow lighting requirements. The rear of the tractor can be equipped with either two red lights that can be seen for 1,000 feet, or with one red light visible for 1,000 feet and two red reflectors visible for 600 feet.