A material source should be described only to the extent supported by available evidence. For recovered-content claims, the US EPA says that estimates and certifications can support a claim and should be reasonably verified where appropriate. A careful description therefore distinguishes supporting evidence from absolute certainty.
Start with the exact claim
The description should identify the precise attribute being discussed—here, recovered-material content—without expanding it into an unsupported statement about origin, quality, sustainability, or compliance.
The cited EPA item addresses recovered-content claims. It should not be presented as proof of where a material originated or as support for unrelated material attributes. A description of provenance requires separate evidence covering the particular origin or route being claimed.
Match the wording to the evidence
| Evidence available | A defensible formulation |
|---|---|
| An estimate | “Recovered-material content is stated on the basis of an estimate.” |
| A certification | “Recovered-material content is supported by a certification.” |
| Appropriate verification | “The estimate or certification was reasonably verified for the stated scope.” |
| An unresolved gap | “The available evidence does not confirm [specific point].” |
These formulations describe what the evidence represents without claiming more. Words such as “proves,” “guarantees,” and “fully verified” should be avoided unless the available evidence actually establishes that stronger position.
Keep “reasonably verified” in context
The EPA wording calls for estimates and certifications to be reasonably verified where appropriate. It does not turn verification into a promise of perfect certainty, and the qualification should not be rewritten as an unconditional rule for every material or claim.
For practical documentation, the writer should confirm that:
- the estimate or certification relates to the material in question;
- it supports the exact claim being made;
- any verification addresses that same scope; and
- no broader conclusion is being inferred from a narrower document.
A statement about who performed verification, what was checked, or what the verification covered needs a supporting record. None of those details should be inferred merely from the presence of an estimate or certification.
What the reader must still confirm
Before relying on a material-source description, the reader should check which material or claim the evidence covers, whether the evidence is an estimate or a certification, what verification actually addressed, and what remains unsupported.
These are practical due-diligence checks, not additional requirements stated in the cited EPA item. If the verification scope or source cannot be defined from available records, that limitation belongs in the description rather than being left implicit.
A concise formulation can be:
Based on the available estimate or certification, recovered-material content is stated as [narrow claim]. The evidence was reasonably verified for [defined scope]. [Any remaining gap] is not confirmed by the available information.
The cited EPA material provides a general evidence principle. It does not establish the identity, certification status, provenance, or regulatory status of any particular material.