Click here to find the right ROLL-OVER PROTECTIVE STRUCTURE (ROPS) for you!
Also, click here to view the Initiative’s national website
HISTORY OF THE PROGRAM
In 2005, NIOSH awarded the 10 agricultural health research centers a grant to fund a 24-month project aimed at launching tractor safety programs. At the time, an average of over 250 farmers, family members, and employees were killed annually in tractor accidents, including overturns, run-overs, PTO entanglements, and collisions. Over half of these deaths were due to overturns. The ultimate goal of the program was to improve safety practices and make safety equipment more accessible through engaging stakeholders—businesses, workers, governments, etc—and to change ideas, behaviors, and policy as well as leveraging funding to address tractor safety. Though the grant period is over, the program has had lasting impacts as we continue to combat tractor-related injuries and deaths.
Tractor-related injuries and deaths have been a problem as long as tractors have been around. Fortunately, we have the technology to nearly eliminate fatalities. Roll bars engineered and tested for safety, called Roll-Over Protective Structures, or “ROPS,” are a very effective way to protect yourself. Sweden was the first country to mandate ROPS on new tractors in 1959 and has since added requirements to install them on all tractors. Between 1960 and 1990, fatalities decreased from 17 to 0.3 per 100,000 tractors (Reynolds and Groves).
Map created by John Myers (NIOSH)
The ag centers recognized that with a focus on behavior change and with enough political will, this level of safety could also be achieved on our farms in the US. In 2004, we released a document detailing the need and preparedness for a national-level program to build the capacity necessary to address tractor safety issues.
This initiative was the first to involve investigators from all 10 centers.
PROJECTS
Projects undertaken as part of the Initiative included:
- Lead Center (HICAHS). Project led by Dr. Stephen J. Reynolds, PhD, CIH, Colorado State University
- Costs of Tractor Operator Injuries from Overturns and Highway Collisions. Project led by Dr. Hank Cole,Ed.D., KY
- Impact of Changes in ROPS Standards, Regulations and Technology on Future Tractor ROPS Availability. Project led by Dr. Juhua Liu, Colorado State University
- Documentation of Acceptability and Procedures for Financial Incentives for Rollover-Protective Structures (ROPS) Retrofitting. Project led by Dr. Mark A. Purschwitz
- Designing Community-based Social Marketing Programs for Tractor Safety. Project led by Dr. Chike Anyaegbunam, KY
- Communications and Partners. Project led by Dr.Rich Fenske, WA
To learn more about each of these projects, go to the Initiative’s website here.
IMPACTS

Researchers test ROPS in Colorado
Project highlights completed under the Initiative included:
- The New York Center for Agricultural Medicine and Health organized a rollbar retrofit program providing rebates of 70%, as well as a toll–free hotline that offers assistance in locating and pricing roll bar kits (1-877-ROPS-R4U). The program received public funding through the New York State Legislature and has the support of the New York Farm Bureau and the Northeast Equipment Dealers Association (NYCAMH, 2007). More than 1000 farmers contacted the hotline, resulting in 259 completed retrofits in the first year alone. The high demand highlighted the effectiveness of incentives programs as well as the need to make ROPS more available.
- Several projects indicated that the cost of ignoring tractor safety is very high. Researchers at the University of Kentucky examined several sources of national data to estimate the incidence and cost of fatal and non-fatal tractor-related incidents over a 25-year time horizon, beginning in 1997 and extending to 2021. The researchers found the social cost of tractor overturn injuries totaled $1.5 billion when using cost factors for the agricultural population (Myers et al, 2007). Additionally, non-fatal injuries may be even more costly than deaths, primarily because they are much more frequent. (Douphrate and Rosecrance, 2006).
Ultimately, studies undertaken as a part of the initiative had a positive impact on local communities and also taught us valuable lessons about how to move forward. They show that, with proper incentives and education, we can accelerate the retrofitting process in a cost-effective way. They demonstrate the importance of regional demonstration projects focused on at-risk populations. They also stress the need for a smooth ROPS distribution system, continued funding sources to make ROPS more affordable, and social marketing tools that are regionally appropriate. We must continue to develop research and outreach activities to address the tragedy of tractor-related deaths in America. Click here to view our final report.
HICAHS’ ROLE
HICAHS, led by Dr. Stephen Reynolds, was the lead center for the project. Dr. Juhua Liu of HICAHS led the project“Impact of Changes in ROPS Standards, Regulations and Technology on Future Tractor ROPS Availability.” Additionally, Dr. Liu collaborated on a project aimed at making it easier to mount ROPS on older tractors. To learn more about this project, click here.
HICAHS continues to use our network of collaborators to address tractor safety. One exciting project funded through HICAHS’ 2011-2016 grant is titled “Development and Evaluation of a Computer-based ROPS Design Program.” Through this project, Dr. Paul Ayers of the University of Tennessee will contribute to ROPS availability by developing a computer program that will facilitate the production of diverse and reliable systems to match all post-ROPS tractors. Ultimately, this project aims to increase ROPS utilization and decrease injuries and fatalities due to tractor rollovers.
RESOURCES FOR FARM OWNERS, MANAGERS, WORKERS, AND FAMILIES
For steps you can take to protect yourself, your workers, and your family against tractor related injuries and deaths, check out our factsheets on farm tractor safety, power takeoff entanglement prevention, and rollover protective structures, or use the National Ag Safety Database. Also, use this guide to ROPS to figure out which system could work for your tractors. In New York and surrounding states, you could be eligible for a rebate.
For more information, see the Initiative’s website, the CDC's page on cost-effective ROPS the New York ROPS program, the Kentucky ROPS program, or contact HICAHS. We’re here to help!
Select Publications
Cole HP, Myers ML, Westneat SC [2006]. Frequency and severity of injuries to operators during overturns of farm tractors. J Agricul Safety Health 12(2):127-138.
Comer RS, Ayers P, Liu J [2007]. Evaluation of engineering plastic for rollover protective structure (ROPS) mounting. Journal of Agricultural Safety and Health 13 (2).
Costello TM, Mitchell R, Schulman MD [2009]. Risk factors for a farm vehicle public road crash. Accident Analysis & Prevention 41(1): 42-47.
Douphrate, D., Rosecrance, J., Reynolds, S., Stallones, L., Gilkey, D. [2009]. Tractor-related injuries: an analysis of workers' compensation data. Journal of Agromedicine. 14:190-197.
Douphrate DI, Rosecrance JC, Wahl G [2006]. Workers’ compensation experience of Colorado agriculture workers, 2000–2004. Am J of Industrial Med. 49:900-910.
Liu, J. and P. Ayers [2006]. Impact of Tractor Safety Requirement on ROPS Standards and Technology. ASABE Paper No. 065016.
Liu, J. and P. Ayers [2005]. Dynamic Lateral Strength of Tractor ROPS at High Speed. ASAE Paper No. 055020.
Myers ML, Cole HP, Westneat SC [2006]. Seatbelt use during tractor overturns. J Agricul Safety Health. 12(1):43-49.
Myers ML, Cole HP, Westneat SC [2005]. Cost-effectiveness of a dealer’s intervention for retrofitting rollover protective structures. Injury Prevention. 11(3):169-173.
Myers J, Hendricks K [2009]. Agricultural Tractor Overturn Deaths: Assessment of Trends and Risk Factors. American Journal of Industrial Medicine.
Sanderson WT, Madsen MD, Rautiainen R, Kelly KM, Zwerling C, Taylor CD, Reynolds SJ, Stromquist AM, Burmeister LF, Merchant JA. 2005. Tractor safety concerns in Iowa: The Keokuk County Rural Health Study. J Agric Saf Health 12(1): 71-81.
Reynolds SJ, Groves W. 2000. Effectiveness of roll-over protective structures in reducing farm tractor fatalities. Am J Prev Med 18(4S):63-69.
Rautiainen RH, Ohsfeldt R, Sprince NL, Donham KJ, Burmeister LF, Reynolds SJ, Saarimaki P Zwerling C [2005]. Cost of compensated injuries and occupational diseases in agriculture in Finland. J. Agromedicine, 10(3), 21-29.
Wang X, Ayers P, Comer R [2005]. Modification and evaluation of continuous roll prediction model for front drive mowers. ASAE Paper No. 05-5003.
