> ## Documentation Index
> Fetch the complete documentation index at: https://docs.isometric.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Laboratory accreditation FAQs

> Whether your laboratory must hold ISO/IEC 17025 accreditation, how to use a non-accredited lab, and whether a lab needs pre-approval before testing starts

> [!NOTE]
>
> In all cases, guidance provided in the [Isometric Standard](https://registry.isometric.com/standard), [Protocols](https://registry.isometric.com/protocols) and [Modules](https://registry.isometric.com/modules) is authoritative.

## Must the lab I use be accredited?

Yes. [Section 7.4.2 of the Isometric Standard](https://registry.isometric.com/standard#3fde0f482001cceb20dc17308b6ddf3a) requires labs that conduct project analyses to hold ISO/IEC 17025 accreditation. Any lab that meets that requirement can be used.

## Can I use a non-accredited lab?

This is possible, but requirements will look different depending on the pathway, so we recommend discussing this with your Registry Operations Manager.

In general, the non-accredited lab must demonstrate that it meets the requirements of ISO 17025 through equivalent accreditation or processes.

The project proponent selects, engages and pays the lab. Isometric does not arrange it or manage the relationship.

## Do I need Isometric or the VVB to pre-approve my lab before testing starts?

No standalone pre-approval is needed. All lab documentation and justification must be integrated into the [Project Design Document](https://docs.isometric.com/user-guides/certify/project-design.md), which the VVB then validates.

Isometric may review a lab's documentation informally in advance if you require confirmation before sending samples.

## Still need help?

If none of these answers solve your problem, [contact support](https://docs.isometric.com/support/contact-support.md).


## Related topics

- [VVB site visit FAQs](https://docs.isometric.com/support/validation-and-verification/site-visits.md)
- [Isometric Support](https://docs.isometric.com/support/index.md)
- [Certify and data FAQs](https://docs.isometric.com/support/platform/certify-and-data.md)


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