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OSHWA certification is a free, project-level self-certification that a specific open-hardware project follows the Open Source Hardware Association’s community definition. It is not an independent product test, a company-wide credential, or evidence that a device is safe or regulator-approved. Each registered project gets a unique ID, and certification must be renewed annually.

What OSHWA certification means

The Open Source Hardware Association (OSHWA) describes open source hardware as hardware whose design is publicly available so people can study, modify, distribute, make, and sell the design or hardware based on it. The goal is to give people control over technology while sharing knowledge and enabling commerce. See OSHWA’s definition.

Certification is a producer’s commitment that a particular project meets that community-written definition. The process is self-certification: the creator submits the Certification Mark License Agreement and agrees to follow OSHWA’s requirements and mark-use guidelines. OSHWA does not independently test the product. The OSHWA FAQ puts the scope plainly: “The certification works on a per-project basis. OSHWA does not certify individuals, companies, or organizations as open source hardware-compliant.”

What creators must open

OSHWA separates a project into hardware, software, documentation, and branding. Hardware and documentation are core to the definition; software requirements apply when the product uses software, while branding is optional. Creators must make their own contributions available and open all parts within their control. They must also provide design information and documentation in useful, modifiable forms, not merely describe the product or publish files that cannot practically be reused.

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  • Software: License software necessary to the product’s operation under an OSI-approved license. If the project has no software, no software license is required.
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OSHWA recommends hardware licenses including CERN-OHL-P-2.0, CERN-OHL-S-2.0, CERN-OHL-W-2.0, Solderpad, and TAPR. These are options, not interchangeable labels: the CERN-OHL v2 variants differ in reciprocity, while Solderpad is permissive. For documentation, OSHWA recommends CC0, CC BY, or CC BY-SA. Licensing has legal consequences that vary by jurisdiction and use; OSHWA recommends consulting a lawyer about specific legal questions. See its FAQ and guidance.

Can a project include closed components?

Some third-party components may remain closed when the creator cannot make them open. This is not a blanket exception: creators must disclose everything within their power, and a closed component cannot require an NDA for access. For third-party parts such as chips, OSHWA’s requirements say hardware needs fully accessible and shareable datasheets to count as open. Clearly identify which portions are open and which are not.

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How to register and keep certification current

  1. Prepare the project materials. Gather the design files, documentation, licenses, and product version information. Ensure the files are accessible from the project’s product page or documentation.
  2. Check the project against OSHWA’s requirements. Confirm that creator-controlled contributions are open, software and documentation have suitable licenses, and any third-party closed components are identified and meet the program’s conditions.
  3. Submit the agreement and register the project. Apply through OSHWA’s certification process, agree to its requirements and mark-use guidelines, and register the unique project. Registration is free, according to the OSHWA FAQ.
  4. Use the mark only for the registered project. Make clear which product or parts it covers, and link users to the relevant registration and documentation.
  5. Renew each year. OSHWA’s requirements provide a one-year term from confirmed approval. The creator must request renewal annually and reaffirm compliance to continue using the mark.
  6. Register a new version when needed. Each unique project version has its own registration code and should point to documentation for that version. OSHWA leaves the substantial-change decision to the creator’s best judgment, but recommends re-registering when earlier documentation no longer completely describes the current release.

What the certification mark does—and does not—show

The mark is a legally binding, unique logo for projects that comply with OSHWA’s definition. The OSHWA directory lets users look up registered projects by hardware type, license, and country of origin. Use the project’s unique certification ID and linked documentation to check the specific registered version.

The mark does not give OSHWA or a creator exclusive control over the phrase “open source hardware” or the open gear logo. A creator may use the gear logo to express their own view of openness, but that alone does not show the project meets OSHWA’s definition. Certification also does not establish product safety, regulatory approval, or compliance with other standards.

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What was changing for health hardware in 2025?

In a 2025 article, OSHWA described Open Healthware as a developing pathway built on its existing open-hardware certification to address the documentation and replicability needs of health-related devices. The article traces formal work to September 2024 and describes community development through 2025. It says OSHWA was preparing a website wireframe for community feedback; it does not establish that a final healthware certification had launched by September 2025.

The proposed approach aimed to cover a broad range of devices, from bandages to implantable devices. Community input identified a bill of materials and intended use as required source information, with legacy plans, quality-management-system testing data, and sterilization plans required when creators have them. OSHWA said the effort was not intended to assess safety, which remains the role of existing standards bodies. For current availability and requirements, consult OSHWA’s Open Healthware article and official program pages.

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