Understanding the Shift in ANSI Fall Protection Standards: From 900 lbs to 1,800 lbs Maximum Arresting Force

In the realm of workplace safety, standards evolve to reflect better understanding and technology. A significant change in the American National Standards Institute (ANSI) fall protection guidelines is the increase in the maximum arresting force (MAF) from 900 pounds to 1,800 pounds. This adjustment has profound implications for equipment selection and anchorage point evaluation.

What Is Maximum Arresting Force (MAF)?

MAF refers to the peak force exerted on a worker's body during a fall arrest. Previously, ANSI standards limited this force to 900 pounds, primarily when body belts were common. However, with the transition to full-body harnesses, which distribute forces more evenly, the allowable MAF has been increased to 1,800 pounds . This change aligns with OSHA regulations, which also set the MAF limit at 1,800 pounds for full-body harnesses.

Impact on Equipment Selection

The increase in MAF necessitates a reevaluation of fall protection equipment. Manufacturers must ensure that harnesses, lanyards, and self-retracting devices can withstand the higher forces. For instance, self-retracting lifelines (SRLs) are now tested to handle the increased MAF, ensuring they perform effectively during a fall event .

Workers and safety managers should verify that their equipment complies with the updated standards. Using gear rated for the previous 900-pound limit may not provide adequate protection under the new guidelines.

Reevaluating Anchorage Points

With higher forces involved in fall arrests, anchorage points must be reassessed. There are two primary categories: engineered and non-engineered anchorage points.

Engineered Anchorage Points

These are designed and certified by qualified professionals to handle specific loads. Under the updated standards, engineered anchors must withstand twice the potential impact force, meaning at least 3,600 pounds for a 1,800-pound MAF . These anchors are tailored to the work environment and provide a high level of safety assurance.

Non-Engineered Anchorage Points

Non-engineered anchors are not specifically designed by professionals but must be capable of supporting at least 5,000 pounds per attached worker . This higher requirement accounts for the lack of specific design and testing, ensuring a safety margin.

Given the increased MAF, it's crucial to verify that all anchorage points, especially non-engineered ones, meet these strength requirements. Regular inspections and assessments by competent persons are essential to maintain safety compliance.

Conclusion

The revision of the ANSI fall protection standards to allow a maximum arresting force of 1,800 pounds reflects advancements in safety equipment and a better understanding of fall dynamics. This change underscores the importance of using appropriately rated equipment and ensuring that all anchorage points are capable of handling the increased forces. By staying informed and proactive, organizations can enhance worker safety and comply with evolving safety standards