How to Verify Your Supplier's Test Report, Step by Step

In January 2026, the U.S. Consumer Product Safety Commission (CPSC) withdrew its acceptance of four China-based testing laboratories and stated that certifications from those labs were no longer accepted. Companies relying on their reports had to obtain new testing before importing or selling. Importers who had done nothing wrong were suddenly holding paperwork that no longer worked. The full story is in Is Your Testing Lab Still CPSC-Accepted?.

You cannot control whether a lab keeps its standing. You can control whether the report in front of you is genuine, in scope, from an accredited lab, and actually about your product. Here is the six-step check.

ISO/IEC 17025 is the international standard accredited testing laboratories work under. Clause 7.8 requires an accredited report to carry:

• a unique report identifier
• the laboratory's name and contact details
• the test method cited
• a description of the sample tested
• the dates the sample was received and tested
• the report's issue date
• results, with units
• an authorizing signatory

A missing element is not automatic proof of fraud — labs can legitimately issue simplified reports by agreement — but a report missing several of these needs an explanation from the lab before you rely on it. Our guide to fake test report red flags covers the visual and structural tells in more depth.

Every accredited lab has an accreditor — A2LA or ANAB in the United States (among others), UKAS in the United Kingdom, CNAS in China. Run two checks against the accreditor, not the report.

Find the lab in the accreditor's online directory. Do not take the certificate number on the report at face value. Inspection-industry specialists have documented valid-looking certificate numbers that were actually assigned to other labs; A2LA maintains a public False Claims of Accreditation page listing such cases.

Check the scope. Accreditation symbols are valid only within the lab's accredited scope. A real lab citing a standard outside its accepted scope is a genuine failure mode — the report looks right, but the result does not stand.

Look also for the ILAC (International Laboratory Accreditation Cooperation) MRA combined mark — it means the lab's accreditor is an ILAC signatory and the accreditation is recognized internationally.

For Chinese labs: CNAS, China's sole national accreditation body with more than 7,000 accredited labs, is an ILAC MRA signatory, and its directory at cnas.org.cn is searchable in English. Chinese reports should also carry the CMA mark — China's mandatory approval for test reports that carry legal effect inside China. Look for both.

If the report supports a Children's Product Certificate (CPC), accreditation alone is not enough. Under section 14(a)(2)-(3) of the Consumer Product Safety Act (CPSA), the testing must come from a lab whose CPSC acceptance covers the specific children's product safety rule being certified.

CPSC's own guidance is blunt: accreditation "is rule-specific, not all laboratories can conduct all applicable testing; firms may be required to use more than one laboratory."

Check at cpsc.gov/cgi-bin/labsearch/ — searchable by lab name or ID, and by rule. Search by the rule, not just the name — acceptance for one rule says nothing about another. Labs withdrawn for cause no longer appear as accepted, and CPSC publishes its adverse-action list alongside the search tool.

One wrinkle: manufacturer-owned, or firewalled, labs may be accepted only by Commission order with extra independence safeguards (CPSA 14(f)(2)(D)). If your supplier tests in-house, ask to see that acceptance.

From July 8, 2026, this check lives at the border, not just in your files — CPSC eFiling puts certificate data into the customs entry itself. See our importer's guide to the July 8 eFiling deadline.

Major laboratories run free verification channels precisely because forgers misuse their names — the labs are the victims, not the culprits.

• SGS — a Verify SGS Documents form, plus a self-serve report-number check for some report types
• Intertek — a certificate-validation form; Intertek's test-report PDFs also carry digital signatures, so any edit to the file invalidates the signature
• Bureau Veritas — an e-certificates portal
• TÜV Rheinland — Certipedia, searchable by test-mark ID
• TÜV SÜD — Certificate Finder
• UL — the Product iQ database

Caveat: these portals mainly verify certificates and certification marks. An ad-hoc test report is often not in any self-serve database — for those, ask the lab's manual verification channel to confirm the report number and contents.

Among the hardest forgeries to catch, as inspection-industry specialists have documented, is a genuine accredited-lab report edited to show a different product, batch, or supplier. The lab is real. The report is real. It just is not about your goods.

Check the report against your own paperwork. Does the product description match what you ordered? The model number? The batch or lot? Do the sample-receipt and test dates make sense against your production timeline? A report dated before your production run existed deserves a hard question.

For materials, the same logic runs one layer down: a passing test on one resin batch says nothing about the resin in your shipment. Our guide to verifying resin and material claims against the TDS covers that layer.

Stop treating the report as evidence. Ask the supplier for an explanation, but verify it independently — through the lab or the accreditor, not the party that handed you the document.

Then re-test at a properly accredited lab — for children's products, one whose CPSC acceptance covers the specific rule. That is the remedy CPSC itself prescribed in January 2026: new testing and certification from properly accredited laboratories before importing or selling.

Do not paper over the gap. Issuing a false CPC carries civil and criminal penalties under the Consumer Product Safety Improvement Act (CPSIA). If you sell on Amazon, our eFiling checklist for FBA sellers shows where verified documents fit into your workflow.

Not sure which CPSC rules and deadlines apply to your products? Start with the free Deadline Checker.

What does a legitimate accredited test report have to include?

Under ISO/IEC 17025 clause 7.8, an accredited report must carry a unique report identifier, the lab's name and contact details, the test method cited, a sample description, receipt and test dates, the issue date, results with units, and an authorizing signatory. A report missing several of these was likely not issued as a full accredited report — or was altered after issue — and either way it needs an explanation from the lab before you rely on it.

How do I check whether a Chinese testing lab is accredited?

Search the CNAS directory at cnas.org.cn, which is searchable in English. CNAS is China's sole national accreditation body and an ILAC MRA signatory, so its accreditations are internationally recognized. On Chinese reports, look for both the CNAS symbol and the CMA mark — China's mandatory approval for reports with legal effect inside China.

A report carries a major lab's logo. Does that mean it is genuine?

No. Inspection-industry specialists have documented forged reports that misuse the names of legitimate major labs — the labs are the victims, which is why they run free verification channels. Confirm the document through the issuing lab itself, for example SGS's document-verification form, Intertek's certificate validation, or UL's Product iQ database.

What does it mean that CPSC lab acceptance is rule-specific?

CPSC accepts a lab for specific children's product safety rules, not for testing in general — its guidance notes that not all laboratories can conduct all applicable testing, and firms may need more than one lab. A Children's Product Certificate is only supported by testing from a lab whose acceptance covers the exact rule being certified.

What should I do if a supplier's test report fails verification?

Stop relying on it, ask the supplier for an explanation, and verify that explanation independently with the lab or accreditor. Then arrange new testing at a properly accredited lab — for children's products, one whose CPSC acceptance covers the specific rule — before importing or selling. Issuing a false Children's Product Certificate carries civil and criminal penalties under CPSIA.