Key Takeaway: The Illinois Supreme Court’s January 2026 ruling in Griffith Foods International Inc. v. National Union Fire Insurance Company confirms that standard business insurance policies do not cover pollution claims, even when the emissions were legally permitted. Businesses should reevaluate their coverage and consider standalone environmental liability insurance from specialty carriers.
If you run a manufacturing plant, a dry cleaner, or any operation with regulated emissions in Illinois, you probably believed your commercial general liability (CGL) insurance would step in if an unforeseen environmental claim arose. That assumption took a hit on January 23, 2026, when the Illinois Supreme Court clarified that the pollution exclusion in standard CGL policies applies regardless of whether your emissions were allowed under a state permit.
This decision reshapes the business insurance landscape for companies across the state. Here’s what it means, why it matters, and how to choose business insurance that truly fits your environmental risk profile.
The Illinois Supreme Court’s January 23, 2026 ruling in Griffith Foods v. National Union Fire Insurance Co. means small industrial businesses can no longer rely on state permits to secure CGL coverage for pollution claims.
What the Illinois Supreme Court Ruled
In Griffith Foods International, Inc. v. National Union Fire Insurance Company of Pittsburgh, PA, the court held in a unanimous 6-0 decision authored by Justice Cunningham that a pollution exclusion in a CGL policy bars coverage for claims arising from pollutants even if the business held a valid permit from the Illinois Environmental Protection Agency (IEPA). The decision explicitly overruled earlier interpretations from Imperial Marble and Bible Pork, which had allowed an exception for permitted emissions.
The ruling emphasized the plain language of the exclusion, which bars coverage for the discharge or release of a broad list of pollutants, including smoke, vapors, fumes, toxic chemicals, gases, and other irritants or contaminants, into land, air, or water. The court stated that allowing permits to override this language would undermine the exclusion’s original purpose: addressing rising environmental litigation.
The underlying dispute arose from mass tort litigation against Griffith Foods and its successor Sterigenics U.S., LLC, in which residents of Willowbrook, Illinois alleged that ethylene oxide emissions from the companies’ medical-equipment sterilization facility over more than 35 years caused cancer and other serious illnesses. The CGL policies at issue were in force between 1983 and 1985, and National Union denied coverage citing the pollution exclusion.
Understanding the Pollution Exclusion in Business Insurance
Standard commercial general liability policies, the backbone of business insurance, contain an exclusion for pollution-related losses. This exclusion, introduced in the 1970s, was designed to shift the responsibility for gradual or long-term environmental damage from insurers to policyholders, because such claims could overwhelm the insurance system. As of 2026, nearly every CGL policy includes some form of this exclusion.
Despite its widespread use, the application of the exclusion has been inconsistent across jurisdictions. Some courts had held that if the pollution was “sudden and accidental” or permitted, coverage might exist. The Illinois Supreme Court’s ruling removes that ambiguity in Illinois: the exclusion means what it says.
How the Ruling Changes Coverage for Illinois Businesses
Previously, a business facing a lawsuit over emissions from a permitted facility could argue that the pollution was not unexpected or unintended, and therefore the exclusion might not apply. The 2026 decision forecloses that argument. Even if your company complies with all IEPA regulations, your CGL insurer can deny coverage for bodily injury, property damage, or cleanup costs tied to those emissions.
This represents a significant shift for industries such as food processing, chemical manufacturing, and waste management, where emissions are routine and heavily regulated. Insurance coverage attorneys have characterized the ruling as a significant win for insurers that limits unexpected liabilities in environmental tort litigation.
The Permitted Emissions Misconception
Many business owners believe that holding a state permit implies some insurance safety net. In practice, many have mistakenly assumed that standard business insurance would respond to permitted pollution claims. The Illinois ruling makes it clear that permits and insurance are separate risk management tools.
A permit confirms you meet regulatory standards; it does not shift liability for potential harm to your insurer. Businesses should treat pollution risk as a standalone exposure requiring distinct coverage, not an add-on to a general liability policy.
Impact on Environmental Litigation
Industry observers expect the decision to accelerate the denial of claims in high-stakes environmental litigation. For example, ethylene oxide lawsuits have proliferated in recent years, targeting sterilizers and chemical facilities. As of 2026, these cases often involve allegations of long-term exposure to permitted emissions, and the new ruling gives insurers a stronger basis to decline defense or indemnity. The ruling is also expected to influence disputes over emerging contaminants such as PFAS (per- and polyfluoroalkyl substances), where regulated emissions have become a rising source of litigation.
This does not mean businesses are without recourse, but it does mean they must actively secure separate environmental coverage. The ruling reinforces a trend toward placing the financial burden of environmental liabilities on the polluter, a shift that began decades ago with the original pollution exclusion.
A Contrasting Ruling: Parsons v. Crum & Forster in Indiana
The Illinois decision represents one side of a broader jurisdictional tension. Just five months later, on June 22, 2026, the Indiana Court of Appeals ruled in Parsons v. Crum & Forster Specialty Insurance Company that ambiguous exclusion language in a commercial insurance policy must be read in favor of the policyholder, applying the doctrine known as contra proferentem. In that case, the court found that a pollution exclusion did not clearly bar coverage for injuries caused by a contaminated product, and it rejected the insurer’s attempt to limit coverage to a narrower specialty policy.
The two rulings illustrate that outcomes in pollution-exclusion disputes often turn on jurisdiction, the specific policy language, and the underlying facts. Illinois businesses can no longer count on permitted-emissions defenses under CGL; Indiana businesses have a stronger argument when exclusion language is genuinely ambiguous. For business owners with operations in multiple states, the practical takeaway is the same: read your exclusion language carefully and buy standalone pollution coverage where your operations warrant it.
Alternative Coverage: Pollution Liability Policies
Insurers have developed standalone pollution liability insurance precisely to fill the gap left by CGL exclusions. These policies can cover cleanup costs, third-party bodily injury and property damage, and even business interruption linked to a pollution event. The Illinois Supreme Court expressly acknowledged in its opinion that such products exist and are widely available in today’s market, and that this availability supported reading the CGL exclusion at its full breadth.
When evaluating business insurance, look for providers that offer pollution liability policies or endorsements that can be tailored to your operations. Coverage limits, deductibles, and the definition of pollutant vary widely, so a thorough review is essential.
Evaluating Your Business Insurance After the Illinois Ruling
Given this legal clarity, how you choose a business insurance provider should change. Start by mapping out your total coverage across the two layers most affected by the ruling: your core CGL and business owner’s policy on one side, and specialty pollution liability on the other.
For core coverage, well-known digital-first carriers such as biBerk, backed by Berkshire Hathaway, and Ergo Next Insurance, backed by Munich Re, offer streamlined online quotes for general liability, business owner’s policies, workers’ compensation, and professional liability. Neither of these carriers underwrites standalone pollution liability, which is the point: for that risk, you will need a specialty environmental carrier accessed through a broker experienced in environmental underwriting.
Also scrutinize the pollution exclusion language itself. Some insurers use absolute exclusions; others may include limited exceptions for certain on-site incidents. Request a copy of the policy form and compare it with the standard Insurance Services Office (ISO) form to spot any variations. Your broker should be able to walk you through these differences, but do not rely solely on their word; verify with documentation.
Questions to Ask Your Insurance Agent
Use these questions to guide a conversation with a licensed agent or broker:
- “Does my CGL policy contain an absolute pollution exclusion or a limited version?”
- “Based on the Illinois ruling, am I exposed to any coverage gaps for permitted emissions?”
- “Can you provide a quote for a standalone pollution liability policy that matches my operations?”
- “What is the retroactive date on any new environmental coverage, and are there prior acts exclusions?”
- “How does the environmental policy define a pollutant? Are my specific chemicals listed?”
These questions will help you determine whether your business insurance truly aligns with your risks. If the agent cannot answer with specificity, it may be time to shop for a provider with deeper environmental expertise.
Limitations and Cautionary Notes
While the Illinois decision provides clarity, it also creates a gap that not all businesses can easily fill. Pollution liability insurance typically costs more than a standard CGL policy, and premiums can vary dramatically based on the nature of your operations, claims history, and location. For small businesses with tight budgets, this added expense might be a genuine hurdle.
Additionally, the ruling is binding only in Illinois state courts. Businesses operating in multiple states should not assume the same interpretation will apply elsewhere, though it may shape judicial reasoning in other jurisdictions. Finally, even a robust pollution policy has its own exclusions. Known losses, intentional acts, and certain naturally occurring substances are often carved out, so read your policy carefully.
Bottom Line: Key Takeaways
- The Illinois Supreme Court’s 2026 ruling in Griffith Foods International Inc. v. National Union Fire Insurance Company confirms that pollution exclusions in CGL policies apply even when emissions are permitted by state regulators.
- Businesses in Illinois now face a clear coverage gap for environmental claims under standard business insurance policies, and the defense based on permitted emissions is no longer available in Illinois state courts.
- Standalone pollution liability insurance is the primary way to cover this exposure, and carriers have developed specialized products for this purpose.
- When evaluating business insurance providers, prioritize those that offer transparent pollution coverage options and industry-specific expertise. Digital-first carriers cover core business insurance well; environmental risks generally require a specialty carrier.
- Review your policy language with a licensed professional; do not assume the exclusion has any exceptions without written confirmation.
- The ruling does not apply nationwide, and the Indiana Court of Appeals reached a different result in Parsons v. Crum & Forster in June 2026 under different facts and policy language. Multi-state operators should assess exposure jurisdiction by jurisdiction.
Frequently Asked Questions
Should I purchase environmental liability insurance if my business has IEPA permits?
Yes. The Illinois Supreme Court ruling makes it clear that a state permit does not override the pollution exclusion in a CGL policy. If your operations involve any emissions, even regulated ones, you very likely need a separate environmental liability policy to fill that gap.
How can I evaluate business insurance providers in light of the Illinois ruling?
Look for carriers that offer dedicated pollution liability coverage with clear terms. Ask for policy sample language, compare it against standard exclusions, and verify that the carrier is licensed in Illinois with a track record in environmental underwriting. Independent reviews and AM Best financial strength ratings can also guide your selection.
What is the Illinois Supreme Court’s recent ruling on pollution exclusions?
On January 23, 2026, in Griffith Foods International Inc. v. National Union Fire Insurance Company, the court held that a standard-form CGL pollution exclusion applies to pollution claims regardless of whether the emissions were permitted by a state agency. The unanimous 6-0 decision overrules prior Illinois case law that had created a potential exception for permitted emissions.
How does the Griffith Foods v. National Union Fire Insurance Co. case affect business insurance?
It removes a defense that policyholders previously used to argue for coverage of permitted pollution claims. As a result, Illinois businesses must secure environmental coverage outside their CGL policy to protect against pollution-related lawsuits, cleanup costs, and other liabilities.
Do CGL policies in Illinois cover pollution if emissions are permitted?
No. Following the 2026 ruling, the pollution exclusion in a CGL policy applies to permitted emissions in Illinois state courts. Coverage is unavailable under the standard CGL form for any discharge, dispersal, release, or escape of pollutants, whether permitted or not.
Can businesses purchase separate pollution liability policies?
Yes. Specialty insurers offer pollution liability policies designed to cover environmental risks, including cleanup, third-party injury, and property damage. Many are customizable by industry and pollution type. Speak with a commercial insurance broker experienced in environmental underwriting to explore options tailored to your operations.
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