A rollover protective structure (ROPS) is a tested frame or cab on a tractor or earthmoving machine that creates a protective zone around a seat-belted operator if the machine overturns.
A rollover protective structure (ROPS) is a frame, roll bar or cab designed and tested to protect the operator of a tractor or earthmoving machine if the machine overturns. It creates a protective zone around the operator's seat so the operator is not crushed between the machine and the ground.
A ROPS only works when the operator wears a seat belt. The belt keeps the operator inside the protected zone during a rollover. An operator who is thrown from the seat or tries to jump clear can be crushed by the machine or the ROPS itself.
OSHA requires ROPS on many tractors and earthmoving machines used in construction under 29 CFR 1926 Subpart W, sections 1926.1000 to 1926.1003, and on agricultural tractors under 29 CFR 1928.51.
Under 1926.1000, a ROPS removed for any reason must be remounted with bolts or welding of equal or better quality than the original. Each ROPS must be permanently labeled with the manufacturer or fabricator's name and address, the ROPS model number if any, and the machine make, model or series it is designed to fit.
Under 29 CFR 1926.602(a)(2), seat belts must be provided on earthmoving equipment such as scrapers, loaders, crawler and wheel tractors, bulldozers, off-highway trucks and graders. Seat belts are not required on equipment designed only for stand-up operation.
ROPS reduce injury when a rollover happens, but the first goal is to prevent the rollover. Controls include:
Related hazards include struck-by and caught-in or caught-between hazards, which are among OSHA's Focus Four hazards in construction. Operators who work alone in remote fields or sites face added risk if a rollover happens and no one knows. A check-in schedule or lone worker monitoring can help get help to them faster.
A grounds maintenance crew at a large property used a compact utility tractor with a foldable ROPS to mow embankments. Operators often left the ROPS folded down after driving under a low carport and did not wear the seat belt because "the bar was down anyway."
After a near miss in which the tractor tipped onto two wheels on a slope, the supervisor retrained all operators on the requirement to raise and lock the ROPS and wear the seat belt whenever the tractor was moving. The company marked slopes that were too steep for the tractor, assigned a string trimmer crew to those areas, and added a ROPS check to the daily pre-use inspection.
Not reliably. Without a seat belt, the operator can be thrown out of the protective zone and crushed by the machine or the ROPS. OSHA requires seat belt use where a ROPS is required on agricultural tractors.
Many older tractors can be fitted with a ROPS designed and tested for that model. Use a ROPS from the manufacturer or an approved fabricator, and do not build one yourself.
A ROPS protects the operator if the machine rolls over. A falling object protective structure (FOPS) protects the operator from objects falling from above, such as rocks or debris. Some cabs are certified as both.
Yes. A ROPS that has been involved in a rollover or significant impact may be bent or weakened. Replace it according to the manufacturer's instructions before the machine is used again.
Part of SafetyIQ's EHS glossary: plain-English definitions of workplace health and safety terms.
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