At least 31 people have died in California since 2019 from a completely preventable disease — silicosis (silica dust lung disease) — according to reporting by KQED. This number is not an abstract statistic: these are workers who cut engineered stone, mostly immigrant laborers, working in countertop fabrication shops across California. And as this state considers a ban on stone containing more than 1% crystalline silica — a substance proven to cause deadly disease — some Republican lawmakers in the U.S. House are pushing legislation to shield manufacturers of that material from any legal liability.
This is a direct collision between the interests of a multi-billion-dollar industry and the lives of anonymous workers. And the outcome of this collision will profoundly affect the Vietnamese American community working in stone fabrication and finishing in Northern California.
Engineered stone is not ordinary stone — and that is precisely the problem
Unlike natural stone such as granite or marble, engineered stone (also called quartz composite) is manufactured by mixing crystalline silica at very high concentrations — up to 90% — with synthetic resin. When workers cut, grind, or polish this stone, tiny silica dust particles become airborne. Inhaling this dust over extended periods causes silicosis — an incurable lung disease with rapid progression that typically leads to death.
What makes this situation particularly dangerous, according to KQED, is increasingly clear scientific evidence showing that dust from engineered stone is significantly more toxic than silica dust from other sources. Doctors and occupational safety experts, including those from Cal/OSHA and the California Department of Public Health, have confirmed that even when current safety regulations are followed correctly — cutting stone underwater, installing ventilation systems, wearing masks — workers can still develop silicosis in modern fabrication shops.
In other words: the disease is not caused by workers doing something wrong. The disease occurs even when everything is done correctly according to protocol. This is the crucial point that the entire political debate is deliberately obscuring.
Congressman McClintock and the legal shield for foreign corporations
According to KQED, Republican Congressman Tom McClintock — representing a district spanning the Central Valley and Sierra foothills — is a prominent supporter of legislation granting immunity to engineered stone manufacturers. His main argument, and the central argument of manufacturers, is that engineered stone products themselves are safe, and if harm occurs, the responsibility belongs to downstream fabrication shops in the supply chain — the places that directly cut and grind stone — not the manufacturer.
Two corporations mentioned in this context are Cambria, headquartered in Minnesota, and Cosentino, headquartered in Spain. Both are major global engineered stone companies with revenues in the billions of dollars annually. These are not small businesses needing protection from frivolous lawsuits — they are corporations with enormous legal resources, yet they are still lobbying for complete immunity from civil courts.
The argument of "blaming the fabrication shop" sounds logically reasonable, but it collapses when confronted with scientific reality: if no safety measures are sufficient to protect workers, then shifting responsibility to fabrication shops merely transfers the burden from those with money (manufacturers) to those without money (small shop owners and workers). And when small shops go bankrupt or lack the means to compensate, sick workers receive nothing.
According to KQED, David Michaels — former Assistant Secretary of Labor overseeing OSHA and now an epidemiologist at George Washington University — has issued public statements criticizing this legislation, warning that if passed, it will cause many more workers to be disabled by toxic dust.
California moves toward a ban, Washington moves toward immunity — two opposite trajectories
The contrast between California's actions and actions in the U.S. House could not be clearer. According to KQED, California took an important step in May 2026 toward a complete ban on engineered stone containing crystalline silica levels above 1% — a preventative policy aimed at preventing hundreds of new cases in the future.
Meanwhile, in Washington, the Republican majority on the House committee voted to support immunity legislation for manufacturers. These two moves are not merely contradictory on policy grounds — they reflect two completely opposite legal philosophies regarding corporate responsibility in a market economy.
If the federal legislation is passed and becomes law, it could nullify or significantly complicate ongoing civil lawsuits in California — even after the state enacts its ban. The reason: federal product liability immunity law could be cited to block claims based on state law. This is a real legal risk that lawyers are monitoring closely.
Moreover, if California's ban takes effect but federal legislation also passes, manufacturers can still sell products in other states without legal liability — and workers in those states, where no comparable ban exists, will continue facing the risk.
Vietnamese stone workers — invisible victims in this legal battle
The Vietnamese American community in Northern California — especially in the San Francisco Bay Area and suburbs around Sacramento — has a relatively high rate of employment in stone installation, tiling, and fabrication work. This profession is often passed down within families and communities: relatives introduce each other to the work, share workshops, or start small businesses together. This is a familiar economic pathway for many first-generation Vietnamese immigrant families — requiring no degree, no fluent English, but demanding long-term physical endurance.
Precisely this community connection creates a dangerous cycle of exposure: when one person becomes sick, the next person to enter the workshop as a replacement is often also a relative or friend from the same community. And because many Vietnamese stone workers labor in small fabrication shops without legal departments or unions, they rarely know about their right to sue — and know even less when that right is being threatened by legislation in Washington.
Language barriers compound the problem. Occupational health warnings, silicosis materials, and information about legal rights are almost entirely available only in English. Workers cannot read the materials, do not understand the severity of danger, and by the time symptoms appear, the disease is usually already in a progressive stage — incurable.
Another notable point: many Vietnamese stone workers are employed as independent contractors or in shops that do not fully register with regulatory agencies. This places them outside the reach of both Cal/OSHA and workers' compensation programs — and if federal legislation passes, their last remaining legal recourse to sue manufacturers would also be blocked.
The structure of the liability chain — and why "blaming those below" is strategy, not argument
The supply chain of the engineered stone industry operates according to a very specific model:
- Large manufacturers (Cambria, Cosentino, and other corporations) produce raw stone slabs and sell to distributors.
- Distributors resell to small fabrication shops.
- Fabrication shops cut, grind, and shape stone according to each customer's order.
- Workers at the shop are those directly exposed to silica dust throughout the fabrication process.
When manufacturers argue that responsibility belongs to fabrication shops because they "fail to follow proper safety procedures," they ignore a fundamental fact: the manufacturer decides the silica concentration in the product, they know — or should know — that no safety procedure exists that fully eliminates risk from crystalline silica dust at high concentrations.
This is a legal doctrine called strict products liability — meaning manufacturers are liable for harmful products regardless of whether users followed procedures correctly, if the product itself has an inherent defect. This is precisely the doctrine current lawsuits are applying — and the doctrine that Congressman McClintock's bill seeks to destroy.
The tobacco industry used a similar strategy for decades: arguing that smokers made the choice themselves, that manufacturers had no fault if users did not follow "safety instructions." We know how that story ended.
Could the federal bill pass — and what happens next?
Consider the practical reality: the Republican majority in the House voted to support the bill in committee. If Republicans maintain voting discipline in the full chamber, the bill could pass the House. In the Senate, the situation is more complex — some senators from states with strong labor communities will face pressure from both sides.
The bill will likely be blocked in the Senate or require significant amendment — but even if it does not become law this time, the lobbying process creates a troubling effect: it signals to other states that the engineered stone industry has sufficient political influence to push back against legal liability, and it slows the efforts of those advocating for the other side when they know the legal landscape could shift.
In a worst-case scenario — the bill passes and is signed into law — pending lawsuits could be dismissed, and hundreds of victims' families would lose any recourse for compensation from manufacturers. California will have its ban, but yesterday's sick workers will receive no compensation for yesterday's harm.
For the Vietnamese American stone worker community in Northern California, the practical question is not merely whether this bill becomes law — but whether community organizations, legal aid offices, and trade associations can reach affected workers before the legal door closes.
Read the full original KQED report at the source link below.