Amber flashing lights are required at all times on self-propelled implements manufactured after Jan. 1, 1970. Other lights are required from sunset to sunrise, during rain or anytime visibility is impaired. Self-propelled implements must have two amber flashing hazard lights visible to the front and rear, one white light headlight visible to the front, one rear taillight visible to the rear, and two red reflectors visible to the rear. Lights on towed vehicles during non-daylight or poor visibility periods need to include one white or amber light visible from the front to mark the extreme left projection of the implement, one amber light visible from the rear to mark the extreme left projection of the implement, and two red reflex reflectors at the extreme left and right ends of the implement. With some exceptions, implements of husbanddry are exempt from size limitations if driven or towed at 25 miles per hour or less, not operated on an interstate highway, and operated within 75 miles of land owned, leased or operated by a farmer.
Farm implements are exempt from weight limitations.
However, the weight of any wheel of an implement must not exceed 600 pounds per inch of the tire width. For example, a single tire 10 inches wide can carry 6,000 pounds, or 24,000 pounds total for a four-wheeled implement. For more information on laws affecting implements of husbandry, contact the Minnesota Highway Patrol or go to a public library and ask for Minnesota Statute 169.