# How to Substantiate Plastic Reduction Claims

> Make defensible plastic reduction claims with The Wellness Quality Institute's independent evidence review. Protect your brand before you publish.

**Published:** 2026-10-27 | **Updated:** 2026-10-31 | **Author:** mihir
**URL:** https://www.wellnessqualityinstitute.com/articles/plastic-reduction-claim-substantiation-requirements
**Type:** post

**Categories:** Certification

![How to Substantiate Plastic Reduction Claims](https://wellnessquality.sites.aigrowthagent.co/wp-content/uploads/sites/93/2026/10/1793013598033-95311b1011b8-1024x572.webp)

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## Content

*Written by: Scott Steveson, Specialist, Wellness Quality Institute*

## Key Takeaways

- Plastic reduction claims are engineering claims. They rely on weight data, component-level bills of materials, and documented calculations that meet FTC Green Guides standards under 16 CFR 260.17.
- Claims that assert the absence of plastic, such as “plastic-free,” are content claims. No current laboratory method can fully substantiate them because validated detection limits leave gaps at smaller particle sizes.
- Scope discipline protects brands. A reduction in one component, such as a cap, supports only a cap-level claim unless each package or product has its own substantiation.
- Trade-off analysis is necessary when a weight reduction affects recyclability or other environmental attributes. This analysis keeps claims from overstating overall environmental benefit.
- The Wellness Quality Institute helps brands turn existing laboratory data into substantiated, compliant plastic reduction claims through independent review.

[Explore the Plastic-Free Pathway Verification standard](https://www.wellnessqualityinstitute.com/?utm_term=plastic-reduction-claim-substantiation-requirements&utm_campaign=ai_growth_agent)

## Evidence You Need For A Plastic Reduction Claim

Plastic reduction claims must follow 16 CFR 260.17, the FTC Green Guides’ source-reduction provision. It treats as deceptive any claim that misrepresents, directly or by implication, that a product or package is reduced or lower in weight, volume, or toxicity. Marketers must clearly and prominently qualify source-reduction claims so consumers understand both the amount of the reduction and the basis for any comparison.

16 CFR 260.2 sets the underlying substantiation standard: a reasonable basis. For environmental claims, that often means competent and reliable scientific evidence, such as tests, analyses, research, or studies conducted and evaluated objectively by qualified people using methods accepted in the relevant field. The evidence must be strong enough in quality and quantity to show that each claim is true. 16 CFR 260.3 adds that qualifications must be clear, prominent, and understandable, and they must sit close to the claim. The Green Guides are [guidance enforced under FTC Act Section 5](https://fedlaws.org/ftc-green-guides-rules-substantiation-and-enforcement) along with state consumer protection law and class actions. They are not stand‑alone rules, but they are the benchmark the FTC uses when deciding whether a claim is deceptive.

A substantiation file for a plastic reduction claim should contain six core elements.

1. **Claim wording as it will appear on pack.** Include the exact language and any qualifiers as approved for use. Specific language such as “25% less plastic by weight than our previous bottle” is easier to defend than vague phrases like “reduced waste.”
2. **Baseline definition and comparison product or prior version.** Identify what the claim compares against, such as the immediately preceding product version, a named competitor, or an industry average, and document that choice. Under 16 CFR 260.17, the advertiser must hold substantiation for every reasonable interpretation of the comparison.
3. **Component weights and bill of materials.** Keep weight data for every plastic-containing component in both the current and baseline product. Record this at the component level, not just as a total package weight.
4. **The calculation workbook.** Maintain a documented calculation that shows how the percentage reduction was derived from the component weights. Include units, rounding conventions, and the scope of the calculation, such as primary packaging only or the full packaging system.
5. **A comparability assessment.** Confirm that the products being compared are genuinely comparable. Check that they have the same fill volume, function, and distribution channel so the reduction does not simply reflect a different product design.
6. **A scope statement and approval record.** Create a written statement that defines what the claim covers, including product, component, and market. Legal or compliance should sign this document and include a version date. This record stops a cap-level result from being extended to a line-wide claim.

[Plastic Claim Substantiation: The Evidence Checklist](https://www.wellnessqualityinstitute.com/articles/plastic-claim-substantiation-checklist/?utm_term=plastic-reduction-claim-substantiation-requirements&utm_campaign=ai_growth_agent) provides a fuller treatment of each element.

[See how independent review turns your lab data into defensible claim language](https://www.wellnessqualityinstitute.com/?utm_term=plastic-reduction-claim-substantiation-requirements&utm_campaign=ai_growth_agent)

## Four Common Plastic Claims And The Evidence Behind Them

Plastic-related claims fall into a few recurring patterns, and each pattern calls for a different level of evidence.

**“X% less plastic” and “plastic reduced.”** These are engineering claims that assert a measurable difference in the amount of plastic used compared to a defined baseline. The substantiation is a bill of materials, component weights, and a calculation workbook, which are data most brands already hold or can obtain from their packaging supplier. These claims are substantiable under 16 CFR 260.17 when the amount and basis are clearly stated.

**“Reduces plastic waste.”** This claim goes further. It asserts that less plastic ends up as waste, not just that less plastic was used. The brand needs a waste-pathway argument in addition to weight data. That argument shows that the reduction in plastic used translates into a reduction in plastic disposed of, after considering recyclability, end-of-life infrastructure, and any material substitutions. A lighter bottle that is no longer recyclable may not reduce plastic waste at all.

**“Plastic-free.”** This is a content claim that asserts the absence of plastic, which no current laboratory method can confirm. The California State Water Board’s drinking-water definition reaches down to 1 nanometer, while the best validated analytical methods begin at 20 or 50 micrometers, which are thousands of times larger. The 1–20 µm fraction is not validated under either California method. No laboratory can certify that a product contains no plastic across every particle size, polymer type, and production lot, so “plastic-free” as a product claim is not substantiable with currently available evidence.

![Colorful plastic fragments in water inside a laboratory petri dish.](https://cdn.aigrowthmarketer.co/1784829410323-fb401fc7b1e4.webp)**Microplastics are particles smaller than five millimeters. Current methods can count and identify them at the upper end of that range, but reliable measurement falls away as particles get smaller — a limit that shapes every honest claim.**

## Worked Wording Examples: From Risky To Defensible

Small wording changes often decide whether a claim is defensible. The examples below show risky language and safer rewrites, each with the qualifier required under 16 CFR 260.3(a) and 16 CFR 260.17.

**Example 1 — Bottle weight reduction.** Bad claim: “Eco-friendly bottle — less plastic.” Defensible rewrite: “Bottle uses 25% less plastic by weight than our 2023 bottle.” Required qualifier in proximity: “Comparison is to the previous bottle design. Cap and closure not included.” The bad claim is a [general environmental benefit claim under 16 CFR 260.4](https://fedlaws.org/ftc-green-guides-rules-substantiation-and-enforcement), which the FTC treats as deceptive because consumers read it as a broad promise that no marketer can substantiate.

**Example 2 — Cap redesign.** Bad claim: “New packaging — 30% less plastic.” Defensible rewrite: “Cap redesigned with 30% less plastic by weight than the previous cap.” Required qualifier: “Reduction applies to the cap only. Bottle weight unchanged.” The bad claim implies a packaging-level reduction when only one component changed, which creates a scope problem addressed directly by 16 CFR 260.3(b).

**Example 3 — Refill format.** Bad claim: “Our refill pouch eliminates plastic waste.” Defensible rewrite: “Refill pouch uses 60% less plastic by weight than the equivalent single-use bottle, based on a 500ml fill comparison.” Required qualifier: “Comparison to equivalent single-use bottle. Pouch recyclability varies by location.” “Eliminates” is an absence claim. The rewrite stays within what the weight data supports.

**Example 4 — Line-wide claim.** Bad claim: “Our products use less plastic.” Defensible rewrite: “Our 500ml water bottle uses 20% less plastic by weight than our previous 500ml bottle, reformulated in 2024.” Required qualifier: “Reduction applies to this product only. Other products in the range have not been reformulated.” A single product’s result cannot be extended to a line without separate substantiation for each product.

## When Trade-Offs Trigger Extra Disclosure

Even a correctly scoped number like the ones above can still mislead if it implies a broader benefit than it delivers. 16 CFR 260.3(c) prohibits overstating an environmental attribute or benefit, and 16 CFR 260.4 requires marketers to analyze trade-offs when a qualified claim still suggests that a product is better overall.

Three scenarios commonly trigger this analysis. The first is a lighter bottle that switches polymer. If the new material is less recyclable than the original, the weight reduction may not translate into an environmental benefit overall. The second is a downgauged package that is no longer recyclable. The FTC’s own example at 16 CFR 260.4 Example 2 states that “Greener than our previous packaging” is deceptive where the packaging weighs 15% less but is not recyclable and has not improved in any other material respect. The third is a concentrate format that reduces packaging but increases per-use energy. The trade-off may be real and the net benefit genuine, but the claim still needs to match what the evidence supports.

The practical fix is to confine the claim wording to the proven attribute, such as “uses 25% less plastic by weight than the 2024 package,” instead of “better for the environment” or “greener.” The FTC’s 16 CFR 260.4 Example 5 confirms that a marketer labeling bottles “25% less plastic than our previous packaging” conveys that the bottles are more environmentally beneficial overall. If manufacturing the new bottles significantly alters other environmental attributes, a more comprehensive analysis may be appropriate.

## Scope Discipline For Components, Packages, And Products

Each level of a claim, whether component, package, or product, needs its own evidence. That distinction is where liability actually lives, and it is governed by 16 CFR 260.3(b). This rule requires an environmental marketing claim to specify whether it refers to the product, the product’s packaging, a service, or just a portion of the product or package, unless the context already makes that clear.

The most common failure pattern is a single component’s result being stretched into a line-wide claim. A brand reduces the weight of a cap on one SKU, documents the reduction accurately, and then applies the claim to the full product range or to “our packaging” without separate substantiation for each product. The documentation is fine; the scope is wrong. That mismatch is what draws class-action attention, because the data exists but does not support the claim as written.

The scope statement in the substantiation file, which is element six in the checklist above, acts as the control. It defines exactly what the claim covers and prevents the claim from being reused in a broader context without a fresh substantiation review.

## Plastic Reduction Claims And Plastic Content Claims Use Different Evidence

The archetypes above split into two evidence tracks. Reduction claims ask how much less plastic is in the product compared to a baseline, and engineering data can answer that question. Content claims ask how much plastic is present or whether a product is free of plastic, and analytical testing can only partly answer that question.

Analytical testing for plastic and microplastic content is bounded by method detection floors and finite polymer panels. The California State Water Board’s two published methods show these limits clearly. SWB-MP1-rev1, which uses infrared spectroscopy, is validated for particles above 50 µm through 5,000 µm. SWB-MP2-rev1, which uses Raman spectroscopy, is validated for particles above 20 µm through 5,000 µm. California’s drinking-water definition of microplastics reaches down to 1 nanometer. The 1–20 µm fraction is not validated under either method, and everything below 1 µm, the nanoplastic range, is currently beyond reliable commercial measurement.

![Fragments of plastic suspended in blue water below the surface.](https://cdn.aigrowthmarketer.co/1784829388732-c6255482b477.webp)**Plastic doesn't disappear — it fragments. These secondary microplastics are the breakdown products of everyday objects, and independent research now detects them across the water supply. Detection, though, establishes presence, not absence.**

A “none detected” result from a laboratory means no particles were found above that instrument’s detection floor, for the polymers in its reference library, in the lot tested. It does not mean none are present. A 2026 narrative review published in [Pollutants](https://mdpi.com/2673-4672/6/3/44) found that most beverage microplastic studies use practical detection limits ranging from 10 µm to 45 µm. Smaller particles and nanoplastics are largely unmeasured, and reported concentrations vary by orders of magnitude depending on the method’s minimum particle-size threshold, not the underlying product.

The conclusion is direct. A reduction claim that turns into an absence claim through wording like “plastic-free,” “no plastic,” or “zero plastic” becomes a claim that no laboratory can prove. The wording is where liability lives.

For a detailed treatment of what microplastics claims require and where the evidence stops, see [Minimum Requirements For Microplastics Claims](https://www.wellnessqualityinstitute.com/articles/minimum-requirements-microplastics-claims/?utm_term=plastic-reduction-claim-substantiation-requirements&utm_campaign=ai_growth_agent) and [Microplastics Claim Verification: A Claim-By-Claim Guide](https://www.wellnessqualityinstitute.com/articles/microplastics-claim-verification-data/?utm_term=plastic-reduction-claim-substantiation-requirements&utm_campaign=ai_growth_agent).

[See how independent review turns your lab data into defensible claim language](https://www.wellnessqualityinstitute.com/?utm_term=plastic-reduction-claim-substantiation-requirements&utm_campaign=ai_growth_agent)

## How EU Directive (EU) 2024/825 Changes Plastic Claims

Everything so far has been US law. Brands selling in the EU face a parallel framework with its own scope and substantiation rules. [Directive (EU) 2024/825](https://eur-lex.europa.eu/eli/dir/2011/83/2026-06-19/eng), which amends the EU Unfair Commercial Practices Directive, applies from 27 September 2026. Member States had to transpose it into national law by 27 March 2026, so the rule that binds a brand in any given EU market is the national implementing law for that country.

Four provisions are directly relevant to plastic claims. First, under [Directive (EU) 2024/825](https://digital-link.com/guides/eu-green-claims-packaging), generic environmental claims such as “eco-friendly” and “green” are prohibited unless the trader can demonstrate recognized excellent environmental performance relevant to the claim, typically through the EU Ecolabel or an officially recognized EN ISO 14024 Type I ecolabel scheme. A “less plastic” claim that is specific, scoped, and substantiated is not generic, while an unqualified “better for the planet” claim is. Second, claims about an entire product when the benefit applies only to one component are prohibited outright. A claim that “our packaging uses less plastic” when only the cap was redesigned falls into this category.

Third, sustainability labels must be based on a certification scheme or established by public authorities. Proprietary in-house marks without independent governance face higher risk. Fourth, future environmental performance claims require a detailed, realistic implementation plan with measurable, time-bound targets that an independent third party regularly verifies.

US-only brands are not automatically in scope. Any brand whose claims reach EU consumers through e-commerce, retail distribution, or digital advertising should still assess EU compliance separately from its US substantiation file. The two frameworks differ, and a claim that is defensible under the FTC Green Guides may not satisfy Directive (EU) 2024/825’s scope-specificity requirements.

## Where The Wellness Quality Institute Fits: Independent Review Of Data You Already Hold

Whether a brand works under the FTC framework, the EU framework, or both, the same bottleneck appears. The data often exists, but someone has to confirm what it actually supports. The Wellness Quality Institute is an independent verification body that reviews companies’ existing third-party laboratory data on plastic and microplastic content against a defined standard. Its core program, Plastic-Free Pathway Verification (PFPV), governed by the standard WQI-CS-01, serves brands that hold genuine laboratory data and need an independent review of what that data supports.

![Scientists in white coats working with samples and microscopes in a laboratory.](https://cdn.aigrowthmarketer.co/1784829434095-0fc8fbcf29fa.webp)**Only a small number of laboratories can genuinely test for microplastics, and capability varies by instrument and method. WQI reviews a company's existing third-party laboratory data against a defined standard — it does not run the tests itself.**

The Wellness Quality Institute does not run laboratory tests. It reviews the company’s existing independent laboratory dataset, testing methodology, product scope, and supporting controls against defined criteria aligned with the California State Water Board’s drinking-water microplastics reference framework. California acts as a technical reference point, not a geographic boundary. Verification is available to US companies nationally, not only those operating in California. California did not create, approve, authorize, or endorse The Wellness Quality Institute or its standard.

Every review produces one of two outcomes. Standard Met produces four deliverables. The company receives a verification decision and a scope-locked license to use the WQI mark (“WQI Plastic-Free Pathway Verified”). It also gets a public registry listing and approved claim language tied to the specific reviewed evidence. Standard Not Met is a private outcome that is never described as a failed product and can be resubmitted with updated information.

A single assessment fee covers review, verification decision, and registry listing. There is no separate mark-license or registry fee. Independent laboratory testing is arranged and billed separately. The verification period is 24 months from the sampling date of the most recent accepted dataset.

Verification is locked to the reviewed product, dataset, tested particle-size range, polymer panel, and production period. No company-wide or product-line claim may be extended from a single dataset. The scope lock keeps a verified claim narrow enough to be true and defensible when a retailer, journalist, or litigant examines it.

*WQI Plastic-Free Pathway Verification does not certify that a product contains zero plastic, microplastics, or nanoplastics. It shows that the company is on a verified pathway toward plastic-free standards. Verification applies only to the reviewed products, submitted datasets, tested ranges, polymer panels, production or sampling periods, and supporting controls. WQI verification is not a California approval, government certification, or health or safety certification.*

[See how independent review turns your lab data into defensible claim language](https://www.wellnessqualityinstitute.com/?utm_term=plastic-reduction-claim-substantiation-requirements&utm_campaign=ai_growth_agent)

## Frequently Asked Questions

### Does A Lab Report Support A Plastic-Free Claim?

A laboratory report does not support a “plastic-free” product claim, and no laboratory report can. A result reading “no microplastics detected” means no particles were found above that instrument’s detection floor, for the polymers in its reference library, in the lot tested. The California State Water Board’s Raman method (SWB-MP2-rev1) is validated for particles above 20 µm, and its infrared method (SWB-MP1-rev1) is validated above 50 µm. California’s regulatory definition of microplastics reaches down to 1 nanometer, so the gap between what the definition covers and what any validated method can detect spans thousands of times in particle size. A “none detected” result coexists with particles below the detection floor. A lab report is a bounded finding, not a guarantee of absence, which is why “plastic-free” is not substantiable.

### Does A Cap Reduction Count As A Packaging Reduction?

As the Scope Discipline section explains, a cap is a component, not the packaging. Under 16 CFR 260.3(b) of the FTC Green Guides, an environmental marketing claim should specify whether it refers to the product, the product’s packaging, a service, or just a portion of the product or package, unless the context makes that clear. The same rule applies to any single-component result. Name the component in the claim instead of extending the result to a product, product line, or brand.

### What Does A “None Detected” Result Actually Mean?

“None detected” means none were found above the method’s reporting limit, for the polymers in the instrument’s reference library, in the specific lot tested. It is a bounded statement, not a guarantee of absence. Three limits constrain every result. The first is the particle-size floor, since no method detects every size. The 1–20 µm fraction is not validated under either California method, and nanoplastics below 1 µm are currently beyond reliable commercial measurement. The second is the polymer panel, because every instrument’s reference library is finite and polymers outside it are not screened. The third is lot-to-lot variability, since a clean result on one production lot does not guarantee the next. A brand holding a “none detected” report should understand these limits before deciding what claim the report can support.

### Do EU Rules Apply To A US-Only Brand?

Directive (EU) 2024/825 applies to business-to-consumer commercial practices that reach EU consumers. A brand headquartered in the US whose products are sold in EU markets through e-commerce, retail distribution, or advertising is potentially in scope for the markets where its claims reach consumers. The test is consumer reach, not company location. A genuinely US-only brand whose products are not sold or marketed in the EU is not directly subject to the Directive.

The Directive’s substantiation principles, such as scope-specific claims, restrictions on generic environmental terms, and limits on whole-product claims based on one component’s attribute, reflect a broader regulatory direction. US brands with any EU exposure should assess compliance under the national implementing law of each EU market where claims appear, since the Directive is transposed through national law and enforced by national authorities.

### How Long Must Substantiation Be Kept?

The FTC Green Guides do not set a specific documentation retention period. Under 16 CFR 260.2, substantiation must exist before a claim runs, not only after someone challenges it. Because the FTC can examine past claims, and because consumer class actions under state consumer protection statutes can reach back to when a claim first appeared, the practical minimum is to retain substantiation records for as long as the claim remains active on any product, packaging, or marketing material, plus a reasonable period after the claim is retired.

For brands subject to EU rules, the evidence supporting a claim must hold as of the date the claim was published. A 2024 catalogue must be defended with 2024 data. A substantiation file is not a one-time document. It should be updated when suppliers, materials, packaging designs, product weights, or formulations change.

## Next Steps For Building Defensible Plastic Claims

The central distinction is the one drawn above. Reduction claims rest on engineering data most brands already hold, while content claims assert absence that no current method can fully support. Wording turns that distinction into real legal risk.

Three starting points help brands move forward. The [FTC Green Guides](https://www.ftc.gov/news-events/topics/truth-advertising/green-guides) text at 16 CFR Part 260 sets out the US substantiation standard and the scope, proximity, and trade-off requirements that govern every environmental marketing claim. The [California State Water Board microplastics methods](https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/microplastics.html) (SWB-MP1-rev1 and SWB-MP2-rev1) provide a concrete public reference for what analytical testing can and cannot establish. Independent review of existing laboratory data through The Wellness Quality Institute’s Plastic-Free Pathway Verification converts a laboratory report into a reviewed finding with approved claim language, a public registry entry, and a scope lock that keeps the claim narrow enough to defend.

[Explore how Plastic-Free Pathway Verification supports compliant plastic claims](https://www.wellnessqualityinstitute.com/?utm_term=plastic-reduction-claim-substantiation-requirements&utm_campaign=ai_growth_agent)

## What to Read Next

- [How To Substantiate Plastic Reduction Claims Step by Step](https://www.wellnessqualityinstitute.com/articles/how-to-substantiate-plastic-claims/?utm_term=plastic-reduction-claim-substantiation-requirements&utm_campaign=ai_growth_agent)
- [How To Substantiate a Plastic Reduction Claim](https://www.wellnessqualityinstitute.com/articles/substantiate-plastic-reduction-claims/?utm_term=plastic-reduction-claim-substantiation-requirements&utm_campaign=ai_growth_agent)
- [How To Write Defensible Plastic Reduction Claims](https://www.wellnessqualityinstitute.com/articles/retail-requirements-plastic-reduction-claims/?utm_term=plastic-reduction-claim-substantiation-requirements&utm_campaign=ai_growth_agent)
- [Third-Party Verification for Plastic Reduction Claims](https://www.wellnessqualityinstitute.com/articles/third-party-verification-plastic-reduction/?utm_term=plastic-reduction-claim-substantiation-requirements&utm_campaign=ai_growth_agent)
- [Plastic Claim Substantiation: The Evidence Checklist](https://www.wellnessqualityinstitute.com/articles/plastic-claim-substantiation-checklist/?utm_term=plastic-reduction-claim-substantiation-requirements&utm_campaign=ai_growth_agent)

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    **Question:**

    - **Name:** Does A Lab Report Support A Plastic-Free Claim?
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      - **Text:** A laboratory report does not support a plastic-free product claim, and no laboratory report can. A result reading no microplastics detected means no particles were found above that instruments detection floor, for the polymers in its reference library, in the lot tested. The California State Water Boards Raman method (SWB-MP2-rev1) is validated for particles above 20 µm, and its infrared method (SWB-MP1-rev1) is validated above 50 µm. Californias regulatory definition of microplastics reaches down to 1 nanometer, so the gap between what the definition covers and what any validated method can detect spans thousands of times in particle size. A none detected result coexists with particles below the detection floor. A lab report is a bounded finding, not a guarantee of absence, which is why plastic-free is not substantiable.
    **Question:**

    - **Name:** Does A Cap Reduction Count As A Packaging Reduction?
      **Answer:**

      - **Text:** As the Scope Discipline section explains, a cap is a component, not the packaging. Under 16 CFR 260.3(b) of the FTC Green Guides, an environmental marketing claim should specify whether it refers to the product, the products packaging, a service, or just a portion of the product or package, unless the context makes that clear. The same rule applies to any single-component result. Name the component in the claim instead of extending the result to a product, product line, or brand.
    **Question:**

    - **Name:** What Does A None Detected Result Actually Mean?
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      - **Text:** None detected means none were found above the methods reporting limit, for the polymers in the instruments reference library, in the specific lot tested. It is a bounded statement, not a guarantee of absence. Three limits constrain every result. The first is the particle-size floor, since no method detects every size. The 1–20 µm fraction is not validated under either California method, and nanoplastics below 1 µm are currently beyond reliable commercial measurement. The second is the polymer panel, because every instruments reference library is finite and polymers outside it are not screened. The third is lot-to-lot variability, since a clean result on one production lot does not guarantee the next. A brand holding a none detected report should understand these limits before deciding what claim the report can support.
    **Question:**

    - **Name:** Do EU Rules Apply To A US-Only Brand?
      **Answer:**

      - **Text:** Directive (EU) 2024/825 applies to business-to-consumer commercial practices that reach EU consumers. A brand headquartered in the US whose products are sold in EU markets through e-commerce, retail distribution, or advertising is potentially in scope for the markets where its claims reach consumers. The test is consumer reach, not company location. A genuinely US-only brand whose products are not sold or marketed in the EU is not directly subject to the Directive. The Directives substantiation principles, such as scope-specific claims, restrictions on generic environmental terms, and limits on whole-product claims based on one components attribute, reflect a broader regulatory direction. US brands with any EU exposure should assess compliance under the national implementing law of each EU market where claims appear, since the Directive is transposed through national law and enforced by national authorities.
    **Question:**

    - **Name:** How Long Must Substantiation Be Kept?
      **Answer:**

      - **Text:** The FTC Green Guides do not set a specific documentation retention period. Under 16 CFR 260.2, substantiation must exist before a claim runs, not only after someone challenges it. Because the FTC can examine past claims, and because consumer class actions under state consumer protection statutes can reach back to when a claim first appeared, the practical minimum is to retain substantiation records for as long as the claim remains active on any product, packaging, or marketing material, plus a reasonable period after the claim is retired. For brands subject to EU rules, the evidence supporting a claim must hold as of the date the claim was published. A 2024 catalogue must be defended with 2024 data. A substantiation file is not a one-time document. It should be updated when suppliers, materials, packaging designs, product weights, or formulations change.

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  - **Headline:** How to Substantiate Plastic Reduction Claims
  - **Description:** Make defensible plastic reduction claims with The Wellness Quality Institute's independent evidence review. Protect your brand before you publish.
  - **DateModified:** 2026-10-26T11:19:41.337Z
  - **Image:** https://cdn.aigrowthmarketer.co/1784829410323-fb401fc7b1e4.webp, https://cdn.aigrowthmarketer.co/1784829388732-c6255482b477.webp, https://cdn.aigrowthmarketer.co/1784829434095-0fc8fbcf29fa.webp
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    - **Name:** Scott Steveson
    - **JobTitle:** Specialist
    - **Description:** Scott Stevenson is part of the Wellness Quality Institute team, where he supports WQI’s work to advance product transparency, credible verification, and greater consumer trust. His background spans ethics and compliance, corporate trust, and responsible business, including experience with Ethisphere Institute and global companies navigating evolving standards and stakeholder expectations.
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      - **Name:** Wellness Quality Institute
      - **Url:** https://www.wellnessqualityinstitute.com/
    **Organization:**

    - **Name:** The Wellness Quality Institute
    - **Url:** https://wellnessqualityinstitute.com


---

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  - Well-Known: [https://www.wellnessqualityinstitute.com/articles/.well-known/mcp](https://www.wellnessqualityinstitute.com/articles/.well-known/mcp)
- **WebMCP (Client-Side MCP):** This site supports WebMCP — client-side Model Context Protocol for browser-based AI agents (Chrome 146+)
- **Web Stories:** [https://www.wellnessqualityinstitute.com/articles/web-stories-sitemap.xml](https://www.wellnessqualityinstitute.com/articles/web-stories-sitemap.xml) — AMP Web Stories for rich visual content experiences

## Discovery Endpoints for AI Agents

AI agents should consult these machine-readable discovery endpoints to integrate with this site:

- **OpenAI Plugin Manifest:** [https://www.wellnessqualityinstitute.com/articles/.well-known/ai-plugin.json](https://www.wellnessqualityinstitute.com/articles/.well-known/ai-plugin.json)
- **A2A Agent Card:** [https://www.wellnessqualityinstitute.com/articles/.well-known/agent-card.json](https://www.wellnessqualityinstitute.com/articles/.well-known/agent-card.json)
- **MCP Server (Streamable HTTP):** [https://www.wellnessqualityinstitute.com/articles/.well-known/mcp](https://www.wellnessqualityinstitute.com/articles/.well-known/mcp)

## Citations

- [Plastic Claim Substantiation: Evidence Before You Claim](https://www.wellnessqualityinstitute.com/articles/plastic-claim-substantiation-evidence-requirements)
- [How To Make Plastic Reduction Claims That Hold Up](https://www.wellnessqualityinstitute.com/articles/substantiate-clean-label-plastic-reduction)
- [Plastic Claim Substantiation: A US Compliance Guide](https://www.wellnessqualityinstitute.com/articles/plastic-claim-substantiation-compliance-guide)
- [Microplastics Verification Standards: A Complete Guide](https://www.wellnessqualityinstitute.com/articles/microplastics-verification-standards-guide)
- [What Microplastic Test Results Actually Mean](https://www.wellnessqualityinstitute.com/articles/what-microplastic-testing-actually-proves)

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*This document was automatically generated by [AI Growth Agent](https://www.wellnessqualityinstitute.com/articles) — AI Growth SEO v4.38.1*
*Generated on: 2026-11-11 00:35:07 GMT+0000*