ISO 17025 Labs in the USA: Verification and Compliance Guide

Guide to verifying A2LA and ANAB accreditation, reviewing scope documents, and identifying gaps in lab coverage.

IRVINE, CA, UNITED STATES, April 2, 2026 /EINPresswire.com/ -- Qalitex Laboratories, an ISO 17025-accredited third-party testing laboratory with facilities in Irvine and San Diego, California, today announced the release of a practical guide to finding and verifying ISO 17025 accredited testing laboratories in the United States. The guide outlines how to use A2LA and ANAB public directories, what to review in accreditation scope documents, and key red flags that may indicate a laboratory’s accreditation does not cover required testing.

Identifying a qualified ISO 17025 laboratory requires more than a basic search. Many laboratories claim ISO 17025 compliance without holding formal accreditation from recognized bodies such as A2LA or ANAB. For dietary supplement and cosmetic brands, this distinction is critical, as Amazon compliance programs, major retailers, and FDA documentation require verified ISO 17025 accreditation—not self-declared claims.

The A2LA public directory provides a comprehensive resource for verifying accredited laboratories in the U.S., allowing users to search by laboratory name, location, and testing scope. Each listing includes accreditation status, certificate details, and a scope document outlining the specific methods and matrices covered. The ANAB directory offers similar functionality, with both platforms updated in real time to reflect current accreditation status.

"The most important step in verifying a laboratory's accreditation is reviewing the scope document—not just confirming accredited status," said Nour Abochama, Vice President of Operations at Qalitex Laboratories. "A lab may be accredited for unrelated testing categories. The scope defines whether it is qualified to perform the specific methods required for a product."

The guide highlights several red flags brands should watch for, including missing or unverifiable accreditation numbers, expired or suspended status, and scope documents that do not include relevant testing methods such as HPLC, ICP-MS, or USP microbiology standards. Laboratories unable to provide current scope documentation may not meet compliance requirements.

For brands building testing programs, Qalitex recommends identifying required analyses—such as identity, potency, heavy metals, microbiology, and pesticide residues—and confirming that each method is covered within a laboratory’s accredited scope. Failure to verify scope coverage can result in compliance delays, rejected documentation, and increased costs from using multiple laboratories.

"Brands that verify accreditation upfront avoid the most common compliance issues," added Abochama. "It’s a simple step that ensures smoother approvals and demonstrates a strong commitment to quality."

Resources
Full article: https://qalitex.com/blog/iso-17025-accredited-labs-usa/

About Qalitex Laboratories
Qalitex Laboratories is an ISO 17025-accredited third-party analytical testing laboratory with facilities in Irvine and San Diego, California. The laboratory provides certificate of analysis (COA) testing, heavy metal analysis by ICP-MS, microbiology testing per USP <61> and <62>, preservative efficacy testing, stability studies under ICH guidelines, and regulatory compliance support for dietary supplement brands, cosmetic companies, and consumer goods manufacturers. Turnaround times start at 48 hours for standard panels. Testing programs meet 21 CFR Part 111, California Proposition 65, Amazon supplement compliance requirements, and Health Canada NHP Directorate standards.

Nour Abochama
Qalitex Laboratories
+ +1 949) 881-6661
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