With a few exceptions, a ROPS is required on all employee-operated tractors manufactured after October 25, 1976. There are no ROPS requirements for immediate family members working on the farm, but a rollover protective structure can save lives. Whenever possible, everyone should use a ROPS equipped tractor. Tractors without ROPS can be retrofitted with a structure specifically designed for the individual tractor. In the absence of ROPS and a seat belt, the next best preventive measure is to avoid tractor overturns by operating in a safe manner.
Most rear rollovers are the result of changing the tractor's center of gravity.
Normally, a tractor's center of gravity is located about two feet in front of and ten inches above the rear axle. Hitching above the drawbar or in a location not designated by the manufacturer increases the risk of a rear turnover. Excessive throttle use or applying too much power to a restrained rear axle can cause the front-end of the tractor to lift off the ground. As the front end lifts it gains momentum and the tractor flips over. Without a ROPS and a seat belt the operator will likely be crushed.