ISEA Seeking Public Review of Dropped Object Prevention Standard Revision

ISEA is now accepting public review comments in response to its proposed revision to ANSI/ISEA 121-202X American National Standard for Dropped Object Prevention Solutions.

First published in 2018, the proposed update establishes minimum design, testing and performance criteria for active systems used to prevent dropped objects in the workplace. This standard is the first of its kind to address equipment used to tether and/or contain hand tools, components, structure, and other objects from falling from at-heights applications. 

Struck-by falling objects kill hundreds of individuals each year and injure tens of thousands more. Increasing numbers of employees are finding themselves ascending to heights to complete their work, often directly over or adjacent to their colleagues, bystanders and other individuals at lower levels. Protective equipment, such as hard hats, have long been available to minimize the effects of struck-by incidents only after an object has fallen.  Preventative measures such as netting and toe boards are also a mitigating practice for this this risk, however there are challenges to these solutions, and they do not entirely prevent incidents.  Active controls utilized to prevent falling objects by tying them off or containing them while at heights are a rapidly growing practice. Recognizing the benefit of these active prevention practices, it is the mission of this group to create guidance for this equipment. 

Relying on input from stakeholder groups, large national employers and health and safety experts, the proposed update covers active dropped object prevention controls and outlines four categories of equipment: Anchor Attachments, Tool Attachments, Tool Tethers, and Containers.  The standard includes tethering systems subsequently installed to the tools and anchors after original manufacture.

The public review period will remain open July 14 – August 28, 2023.

A copy of the draft standard under consideration is available from ISEA’s website.  There is a $50 charge for the document.  

Any comments or questions should be directed, in writing, to




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