Manufacturers selling products in Minnesota face a rapidly approaching deadline that carries significant legal and financial consequences. The Minnesota Pollution Control Agency (MPCA) has confirmed that the state’s first mandatory PFAS reporting deadline falls on September 15, 2026, at 11:59 p.m. CDT. With the PRISM reporting system now processing submissions at scale—over 17,000 product reports have already been reviewed and published—the window for unprepared companies is closing fast. Minnesota’s regulatory framework for per- and polyfluoroalkyl substances (PFAS) is among the most aggressive in the United States, and the September 15 deadline represents the first major compliance milestone under the amended statute.
The September 15 Deadline: What Manufacturers Must Know
Any manufacturer of products sold, offered for sale, or distributed for sale in Minnesota must submit a report by September 15, 2026, detailing each product or component that contains intentionally added PFAS. The reporting requirement applies to the manufacturer—the entity that produces the final product—not to component suppliers, though manufacturers must gather data from their supply chain to complete the report. The MPCA has made clear that product reports submitted with a fee payment by the deadline will be considered timely, and the agency will not publish reports in the public search of PRISM until after its review.
The system, known as the PFAS Reporting and Information System for Manufacturers (PRISM), is already demonstrating its capacity. According to the MPCA, “PRISM is performing well. Reports on over 17,000 products have already been submitted, reviewed, and published. Thousands more are pending review.” This volume underscores the breadth of PFAS use in consumer and industrial goods and signals that state regulators are serious about enforcement.
Recent Amendment: Exemption for Products Manufactured Before July 1, 2023
In May 2026, the Minnesota legislature amended the PFAS statute to introduce a critical exemption: products manufactured before July 1, 2023, are excluded from the reporting requirements. This date exemption applies to the manufacture date of the final product, not to components within the product. The distinction is important. A manufacturer cannot claim the exemption simply because a component—such as a fastener or seal—was produced before July 1, 2023, if the final product was assembled or manufactured after that date. This nuance requires careful record-keeping and manufacturing date verification.
The amendment provides some relief for legacy products, but it does not eliminate the need for manufacturers to assess their current inventory and product lines. Any product manufactured on or after July 1, 2023, that contains intentionally added PFAS remains subject to the September 15 deadline. Companies that have not yet begun the reporting process must act immediately.
Navigating PRISM: Reporting Tools and Resources
The MPCA’s August 28, 2026, Daily Digest Bulletin offered specific guidance for companies that have not yet reported. The agency recommends that businesses begin by creating accounts in PRISM, following the step-by-step instructions in the PFAS reporting guide and the how-to videos available online. These resources are designed to walk manufacturers through the entire submission process, from account creation to data entry to fee payment.
For more complex scenarios, the MPCA has published a supplemental guide to the PRISM system. This document explains how to report products in groups, report custom products, and handle incomplete information from the supply chain. Given that many manufacturers rely on a global network of suppliers, the ability to manage incomplete or uncertain data is critical. The supplemental guide provides practical strategies for documenting gaps and making reasonable estimates when precise chemical composition data is unavailable.
What is the PFAS reporting deadline for Minnesota?
Manufacturers must submit reports by September 15, 2026, at 11:59 p.m. CDT, with a fee payment included. Reports submitted after that deadline will not be considered timely, and the MPCA may take enforcement action. The deadline applies to any product sold, offered for sale, or distributed for sale in Minnesota that contains intentionally added PFAS, except for products manufactured before July 1, 2023.
How to Report: Grouping, Custom Products, and Incomplete Data
PRISM allows manufacturers to report multiple products as a group if they share the same PFAS composition and use—a feature that can significantly reduce the administrative burden for companies with large product lines. The supplemental guide clarifies the criteria for group reporting: products must be functionally identical in terms of PFAS content, and the manufacturer must be able to attest that each product in the group is covered by the same set of data. For custom products, where specifications vary by customer order, the guide recommends reporting each unique product identifier separately, but with a standardized PFAS declaration.
Handling incomplete information from the supply chain is one of the most challenging aspects of PFAS compliance. The supplemental guide advises manufacturers to document all reasonable efforts to obtain data from suppliers, including written requests and responses. If a supplier cannot provide the required information, the manufacturer may need to rely on publicly available data, testing results, or industry benchmarks. The MPCA has indicated that it will evaluate submissions on a case-by-case basis, but manufacturers should be prepared to justify any assumptions or estimates.
Payment and Submission: Fees, Credit Cards, and Extension Requests
Submitting a report in PRISM requires a fee payment. The MPCA has streamlined the payment process: while extension requests previously required payment by check, the standard reporting fee in PRISM is now prompted via credit card. This change simplifies the transaction and reduces the risk of payment delays. Manufacturers should ensure that the credit card used is authorized for business expenses and that the payment is processed before the deadline.
For companies that cannot meet the September 15 deadline, the MPCA does allow extension requests, but the rules are strict. Extension requests must be submitted before the deadline, and the fee for the extension must have been paid by check—a requirement that may catch some companies off guard. The MPCA has not publicly detailed the criteria for granting extensions, but given the volume of submissions already in the system, it is reasonable to expect that extensions will be granted only in exceptional circumstances.
MPCA Review and Public Search
Once a report is submitted and the fee is paid, the MPCA reviews the data before publishing it in the public search of PRISM. The agency has stated that it will not publish reports until after its review, meaning that manufacturers have a window to correct any errors before the information becomes publicly accessible. The public search is a key feature of Minnesota’s PFAS transparency initiative: consumers, retailers, and advocacy groups can search for any product sold in the state and view the PFAS disclosure. This public exposure creates additional reputational risk for manufacturers that fail to report accurately or completely.
The MPCA’s review process is not instantaneous. With thousands of products still pending review, the agency may take weeks or even months to process submissions. Manufacturers should not assume that a submitted report is automatically compliant; they must ensure that all data is accurate and complete at the time of submission. Any errors discovered after the deadline could lead to enforcement actions, including fines or product removal orders.
Strategic Implications for Manufacturers
The September 15 deadline is not an isolated event. It is the first in a series of compliance milestones under Minnesota’s ambitious PFAS regulatory framework. The state has already enacted bans on PFAS in certain products, and additional reporting requirements are expected to phase in over the next several years. For manufacturers, the current deadline represents an opportunity to demonstrate regulatory compliance and build a foundation for future disclosures.
Companies that have already submitted reports on over 17,000 products are ahead of the curve. Their experience with PRISM will inform their approach to upcoming deadlines, including the potential need to update reports as product formulations change or as new PFAS data becomes available. For those that have not yet started, the clock is ticking. The MPCA’s tips—create an account, review the reporting guide, watch the how-to videos, and use the supplemental guide for complex scenarios—are not optional recommendations; they are essential steps for meeting the deadline.
Manufacturers should also consider the broader market implications. As Minnesota’s PFAS reporting system becomes operational, other states are watching closely. New Mexico, for example, has already enacted similar legislation, and discussions in the podcast referenced in the MPCA’s bulletin highlight the growing national trend. The PRISM system itself was developed by the Interstate Chemicals Clearinghouse (IC2), and its architecture may serve as a model for other states. Early compliance in Minnesota could give manufacturers a competitive advantage as federal and state PFAS regulations continue to tighten.
Finally, the exemption for products manufactured before July 1, 2023, provides a narrow safe harbor but also introduces a compliance risk. Companies must verify the manufacture date of each final product, not just its components. For products manufactured in 2023, the distinction between before and after July 1 can be critical. Manufacturers should audit their inventory and production records to ensure that any product claimed as exempt meets the date requirement. Failure to do so could result in a non-compliant report and potential penalties.
With the September 15 deadline approaching, the window for action is narrowing. The MPCA has provided the tools and guidance needed to comply, but the responsibility lies with each manufacturer. The companies that act now—by creating PRISM accounts, gathering supply chain data, and submitting accurate reports—will not only meet the legal requirement but also position themselves as leaders in the transition to a PFAS-regulated marketplace. Those that delay risk enforcement actions, public disclosure of non-compliance, and the loss of market access in one of the most environmentally progressive states in the country.
