Governance
Substantiation
The evidence held on file that supports a specific claim, kept in a form someone outside the company could check.
OWNER — Product Marketing
LAST REVIEWED — 2026-10-08 20:50:59 UTC
What it is
Substantiation is the evidence held on file that supports a specific claim, kept in a form someone outside the company could check. The FTC's requirement is that an advertiser have a reasonable basis for an objective claim before the claim is disseminated, rather than assemble one after it is challenged. What counts as a reasonable basis varies with the type of claim, the product, the consequences of a false claim, the benefits of a truthful claim, the cost of developing the proof, and the amount of evidence experts in the field consider reasonable. The tighter standard of competent and reliable scientific evidence — tests conducted and evaluated objectively by qualified people — is not confined to health claims: the FTC's health products guidance applies it to claims about the efficacy or safety of health-related products, and the Green Guides say a reasonable basis for an environmental marketing claim often requires it. It is the form a reasonable basis takes for particular kinds of claim, not a standard every claim must meet.
Why it matters
Substantiation is the difference between asserting something and being able to show it. The practical test is not regulatory but commercial: if a customer's procurement or security team asked for the basis of a claim, could you produce it the same day? Knowledge Company treats substantiation as a property of the claim rather than of the document it happens to sit in. Companies that cannot usually discover it during a deal, at the point where the delay is most expensive.
Related terms
Approved Claim
A customer-facing statement that has been reviewed and can be reused across website, sales, support, and AI-answer surfaces.
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Claim Registry
A maintained record of every public claim a company makes, holding its approved wording, its evidence, its owner, and the date it was last checked.
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Provenance
The recorded history of a piece of content: where it came from, what changed it, and who vouches for it.
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Unsubstantiated Claim
A public statement that asserts something checkable and has no evidence recorded against it, whether or not the statement happens to be true.
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