Source information states where a material is said to have come from; proof of origin is the evidence supporting a particular origin claim. The two are not interchangeable, and what counts as proof depends on the claim. For recovered-content claims, the US EPA says estimates and certifications can provide support, while those estimates and certifications should be reasonably verified where appropriate.
Source information states the claim
Source information describes an asserted origin, composition or recovered-content status. A statement may be clear and specific, but clarity alone does not show how it has been substantiated.
The first review question is therefore: What exactly is being claimed? A claim about recovered content is different from a claim about country of origin, manufacturing location or another stage of production. Evidence for one claim should not automatically be treated as proof of the others.
Proof must match the claim
The EPA guidance cited here concerns support for recovered-content claims. It says that estimates and certifications can support such claims and that these materials should be reasonably verified where appropriate.
That distinction matters when reviewing supporting records:
- An estimate supports a claim through an assessment; it remains an estimate rather than an unconditional finding.
- A certification supports the particular proposition it addresses and should not be presented as covering unrelated attributes of a material.
- Verification adds information about what was checked, but the cited statements do not prescribe one universal verification method.
Accordingly, recovered-content documentation may support a recovered-content claim without, by itself, proving the material’s country of origin or complete production history.
What still needs confirmation
Before relying on source information, makers, suppliers and buyers should confirm:
- the exact origin or composition claim being made;
- whether an estimate, certification or other evidence supports it;
- the scope, method and limits of any verification;
- whether the evidence concerns the relevant material or production stage;
- whether the receiving buyer or applicable programme accepts that form of evidence.
The cited EPA statements address support and verification for recovered-content claims in the Comprehensive Procurement Guideline program. They do not establish a universal rule for accepting every estimate or certification as proof of any kind of origin.