Natural Stone Institute Expands Silica Safety Advocacy and Research Efforts Amid Ongoing Regulatory Discussions
Matching Campaign Launched to Support Independent Scientific Expertise, Worker Safety Initiatives, and Industry Representation
Contact:
Natural Stone Institute
(440) 250-9222
networking@naturalstoneinstitute.org
FOR IMMEDIATE RELEASE
Oberlin, OH, June 25, 2026 — The Natural Stone Institute (NSI) has announced an expanded industry advocacy and scientific engagement initiative in response to ongoing silica-related regulatory discussions, including recent actions taken by the California Occupational Safety and Health Standards Board (Cal/OSHA).
On May 21, the Cal/OSHA Standards Board voted to approve a petition that could ultimately lead to a ban on the fabrication and installation of engineered quartz products in California. While natural stone was not included in the proposed ban, the Board also directed a scientific advisory group to further evaluate potential risks associated with natural quartzite and other silica-containing natural stones.
The original petition focused specifically on engineered quartz products, and representatives of the petitioning organization have publicly stated that natural stone should not be included in a ban. However, the NSI believes continued engagement is essential to ensure future discussions and decisions are informed by sound science and an accurate understanding of natural stone materials.
"Protecting worker health remains our highest priority," said Jim Hieb, CEO of the Natural Stone Institute. "Workers are suffering from silicosis, and our industry has a responsibility to advance meaningful safety improvements through education, training, research, and responsible workplace practices. At the same time, it is critical that regulatory decisions involving natural stone are based on credible science and accurate data."
The Natural Stone Institute has been actively engaged in silica safety advocacy at both the state and federal levels. During the past six months, Hieb has testified before a U.S. House of Representatives subcommittee and the Cal/OSHA Standards Board. To strengthen these efforts, the NSI is engaging an independent industrial hygiene expert to provide scientific review, regulatory guidance, and technical expertise. This additional support will help ensure future discussions involving natural stone are informed by sound occupational health practices and a clear understanding of the distinctions between natural stone and engineered quartz products.
Funding for these initiatives is being supported through the Natural Stone Foundation, which has launched a matching campaign to help advance worker safety resources, scientific research, regulatory engagement, and industry advocacy efforts. Through July 31, all donations receive an additional match by an anonymous donor, up to $50,000.
Funds raised will support independent industrial hygiene expertise, scientific research and data collection, regulatory monitoring and engagement, industry representation, the development of worker safety education and training resources, and other general support.
"The work being done today will help shape how natural stone is represented in future research, regulations, and public policy discussions," said Hieb. "This is an important opportunity for the industry to come together and support efforts that protect workers while ensuring decisions are grounded in science."
To learn more about the initiative or make a contribution, visit https://form-renderer-app.donorperfect.io/give/nsf-silica.
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About the Natural Stone Institute
The Natural Stone Institute (NSI) is a trade association representing more than 2,200 members in over 50 nations in virtually every aspect of the global natural stone industry. NSI is dedicated to increasing awareness of natural stone as one of nature's most enduring, inspiring, and sustainable building materials.
We offer opportunities for professionals of all fields, backgrounds, and career levels to connect on natural stone industry challenges, meet potential business partners, and grow their expertise and influence.
