PFAS PASS™ Compliance Case Study — No. 24

The 180-Day Shield

How Sellers, Resellers, and Banks Are Using Return Windows to Dodge PFAS Compliance Proof — and Why the Clock Doesn’t Apply

PFAS PASS™ Compliance Systems  ·  PFASPASS.com  ·  May 31, 2026

1. The Situation

PFAS PASS™ is auditing multiple production projects that incorporated textile materials and components purchased after January 1, 2025 — the date on which California’s AB 1817 and New York’s ECL § 37-0121 prohibitions on new PFAS-containing textiles and apparel took effect. These materials were purchased on the reasonable assumption that, having been sold lawfully after the effective date, they were compliant.

On audit, that assumption could not be confirmed. The compliance picture across the projects is mixed in a revealing way:

• Never furnished: In some projects, no Certificate of Compliance was ever provided at the point of sale, despite the statutory framework placing a documentation obligation upstream.
• Furnished but non-probative: In others, documents were provided, but they do not actually establish compliance with the applicable Total Organic Fluorine (TOF) thresholds — they assert a conclusion without substantiating it.
• Refused on request: In still others, sellers are now declining to produce compliance documentation when asked directly during the audit.

All three failure modes collapse to the same endpoint: there is no provable compliance. And when the absence of proof is raised, the response from sellers, resellers, and — increasingly — the banks processing chargeback requests has been remarkably uniform:

2. Why the 180-Day Window Is the Wrong Clock

The central error — whether made innocently or strategically — is a category mistake. A 180-day return window is a private contract and policy term. It governs remorse and satisfaction returns: the buyer changed their mind, the color was wrong, the fit was off. PFAS compliance is not a satisfaction question. It is a question of statutory product legality — whether the item was lawful to sell in the jurisdiction at the moment of sale.

These are governed by entirely different bodies of law, and they carry entirely different timelines:

Return / Refund Window	PFAS Compliance & Warranty
Source: the seller’s private policy or platform terms.	Source: state statute (AB 1817; NY ECL § 37-0121) and the Uniform Commercial Code.
Governs: buyer’s remorse and satisfaction returns.	Governs: whether the product was legal and fit for its intended use when sold.
Typical length: 30–180 days, set by the seller.	UCC § 2-725: four years from delivery for breach of warranty — and a discovery rule can extend a latent defect further.
Can be shortened by the seller at will.	Cannot be contractually shortened below what the UCC and consumer-protection statutes permit; merchantability disclaimers must be conspicuous to be effective.
Expiry ends the remorse remedy.	Expiry does nothing — a non-compliant product does not become compliant because a calendar passed.

Bottom line: a private return clock cannot waive a statutory obligation, and it cannot extinguish a defect the buyer was structurally prevented from discovering. Citing it in response to a compliance challenge is answering the wrong question.

3. The Strongest Theory: A Latent Defect You Were Prevented From Discovering

This is the spine of the matter, and it is where the 180-day argument falls apart completely. The claim here is not “I want my money back because I changed my mind.” It is built on three linked points.

3.1  The intended use was lawful sale — and the material can’t serve it

Material purchased to be incorporated into apparel or textile articles sold in California or New York after January 1, 2025 had one intended use: lawful incorporation into products that could be legally sold in those states. A material that cannot be proven compliant cannot serve that purpose, no matter how it physically performs. That implicates the implied warranty of merchantability (UCC § 2-314 — goods must be fit for their ordinary purpose) and, where the seller knew the intended use, the implied warranty of fitness for a particular purpose (UCC § 2-315).

3.2  Compliance was presumed at purchase — and the burden sits upstream

Both statutes build their architecture around upstream documentation. Under AB 1817, manufacturers must provide distributors and sellers with a Certificate of Compliance, and a downstream distributor or retailer is shielded only where it relied in good faith on that certificate. New York’s law follows the same logic: sellers may rely in good faith on a manufacturer’s written assurance, and compliance certifications must be kept on-site and produced to regulators on request.

The buyer’s good-faith assumption of compliance is therefore not naivety — it is exactly the posture the statute contemplates. The proof obligation lives upstream. When the seller cannot produce it, the good-faith shield they themselves would rely on has no foundation.

3.3  The inability to prove compliance is itself the defect

This is the pivot. The defect is not merely “the material may contain PFAS.” The defect is that the seller cannot substantiate the compliance that was material to a lawful transaction. And it is a latent defect by design: the buyer could not have discovered it within 180 days precisely because the documentation that would have revealed it was never furnished, was non-probative, or is now being withheld.

4. There Is No Expiration on a Compliance Audit

A separate and equally important point: compliance is a fixed property of the product at the point of sale. A textile article either did or did not contain regulated PFAS above the applicable threshold when it was sold after January 1, 2025. That fact does not change, decay, or expire because time passed.

Neither statute contains any provision under which a non-compliant product becomes compliant, or under which a seller’s furnishing and recordkeeping obligation evaporates, after any return window. It follows that:

1. A project can be audited for compliance whenever it is built, sold, or reviewed. The obligation to have sold a lawful product attaches at sale and remains provable — or not provable — indefinitely.
2. The return clock and the audit clock are unrelated. One governs remorse refunds; the other governs statutory legality. Confusing them is the seller’s error, not the buyer’s lateness.

The inventory reality makes this concrete. Buying materials on sale and holding them for future production is standard, foreseeable trade practice. Material purchased in early 2025 may not enter a finished good until 2026 or later — well outside any 180-day window, and precisely when a compliance audit naturally surfaces the defect. A window that expires before the defect could reasonably be discovered is the textbook condition for latent-defect treatment.

5. The Incentive Behind the Refusals

Stating the pattern plainly, while staying within what the facts support: the effect of these refusals — and the incentive structure they reveal — deserves to be named.

If a seller could prove compliance, producing the Certificate of Compliance costs them nothing and ends the dispute instantly. The document either exists or it does not. The only scenarios in which hiding behind an unrelated 180-day window is the rational move are these:

• They cannot currently prove compliance; or
• They never could, because the inventory was non-compliant.

Refusing to produce documentation a seller is statutorily expected to hold, while invoking a timing rule that has no bearing on statutory legality, is behavior consistent with offloading inventory that would not survive scrutiny. If proof of compliance would force a seller to keep non-compliant stock they can no longer lawfully sell, then a refused refund quietly transfers that stranded, potentially hazardous inventory — and its downstream liability — onto the buyer.

PFAS PASS™ states this as an observed pattern and a reasonable inference, not as an allegation of intent against any specific party. The logic does not require proving anyone’s state of mind — it lets the documented conduct speak for itself.

6. The Banks: Chargeback Denials on the Same Flawed Logic

The pattern now extends to the financial layer. Card issuers and banks processing chargeback requests are denying them on the same category error — treating a statutory-compliance and latent-defect dispute as if it were an ordinary “goods not as described” or buyer-remorse claim subject to a short presentment window.

A chargeback grounded in a product that cannot be proven legal to sell, and whose defect was undiscoverable within the window, is not the same as a late satisfaction return. When banks apply the short clock mechanically, they compound the seller’s error and leave the buyer carrying both the cost and the liability for non-compliant inventory. Chargeback timelines are themselves contractual and procedural — they do not, and cannot, adjudicate the underlying statutory legality of the goods.

In one matter reviewed by PFAS PASS™, a card issuer’s written denial rested on a single stated ground: that the transaction was “not reported in the required timeframe.” The letter made no finding on whether the goods were compliant, whether they were as described, or whether the underlying compliance representation could be substantiated. The merits were never reached — the timing clock alone resolved the dispute. That is the category error in its clearest form: a procedural window standing in for a question of product legality the institution never examined.

7. What This Means for Buyers and Auditors

Practical posture for any business auditing post-January-2025 purchases that have hit this wall:

1. Reframe the demand. Stop asking for a “return.” Ask the seller to produce the Certificate of Compliance / written assurance establishing TOF-threshold compliance for the specific lot, as the statute contemplates. Put the burden where it belongs.
2. Document the failure mode. Record precisely which of the three applies — never furnished, furnished-but-non-probative, or refused-on-request. Each is independently probative.
3. Separate the two clocks in writing. State explicitly that the dispute concerns statutory product legality and a latent defect, not a satisfaction return, and that the return window is not the governing timeline.
4. Preserve everything. Purchase dates, listings, any compliance representations made at sale, and all correspondence in which documentation was requested and refused.
5. Treat refusal as evidence. A documented refusal to produce statutorily expected compliance proof is itself part of the record.

8. Important Note

This case study sets out a compliance and advocacy analysis from PFAS PASS™ Compliance Systems. It is not legal advice, and PFAS PASS™ is not a law firm. The interaction between PFAS restriction statutes, the UCC, consumer-protection law, and card-network chargeback rules is jurisdiction-specific and, in several respects, still developing — including the fact that some state enforcement mechanisms and penalty schedules phase in on later timelines than the sale prohibitions themselves. Businesses facing these disputes should obtain advice from qualified counsel in the relevant jurisdiction before relying on any single theory described here.