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Upload evidence documents

When to Upload Evidence​

Evidence documents are files that substantiate the data values you provide in a response. Uploading strong, well-labelled evidence alongside your data values serves two purposes: it gives the operator confidence in the accuracy of your submission, and it provides the documentation trail that the operator needs to satisfy their own DPP verification requirements under EU Battery Regulation 2023/1542.

Upload evidence in the following circumstances:

When the operator explicitly requests it. The request form may list specific documents under a Documents section — for example, "Please provide the UN 38.3 transport test report for this cell" or "Attach the LCA study underpinning your carbon footprint value."

Proactively, when your values need substantiation. For quantitative claims — carbon footprint, cycle life, energy density, recycled content percentages, hazardous substance concentrations — a data value without a supporting document is difficult for an operator to defend in a DPP audit. If you are providing values derived from a laboratory test, a lifecycle assessment, or an analytical report, upload the underlying document even if it has not been explicitly requested.

How to Upload Within a Data Request Response​

  1. Open the data request response form (see Respond to a Data Request)
  2. Scroll to the Documents section at the bottom of the response form
  3. Click Add Document
  4. Select the file from your device
  5. In the Document description field, write a clear, specific description of what the document is and what it proves (see guidance below)
  6. Click Save
  7. Repeat for each document you want to attach

You can attach multiple documents to a single response. There is no limit on the number of documents per response.

Accepted File Formats and Size Limits​

FormatUse for
PDFPreferred for all formal documents — test reports, certificates, LCA studies, declarations of conformity
JPG / PNGScanned single-page documents where a PDF is not available
DOCXDraft documents or declarations provided in Word format
XLSXData tables, analytical results in spreadsheet format

Maximum file size: 25 MB per file. For large LCA studies or multi-appendix test reports that exceed 25 MB, split the document into sections or compress the PDF before uploading. If compression degrades document quality, contact the operator to discuss an alternative transfer method.

Writing Effective Document Descriptions​

The description field is read by the operator and potentially by third-party verifiers reviewing the DPP. A good description is specific and connects the document to the specific claim it supports.

Effective descriptions:

  • "LCA study (TÜV Rheinland, March 2025) supporting the cradle-to-gate carbon footprint value of 42.8 kg CO₂e/kWh in field CF-001"
  • "REACH compliance declaration (SGS certificate RCH-2025-00443) confirming cobalt sulphate contains no SVHC above 0.1% w/w"
  • "Certificate of Analysis (lab batch 24-LOT-0091) confirming lithium carbonate purity ≥99.5% as declared in the composition field"

Descriptions to avoid:

  • "Test report"
  • "Compliance document"
  • "See attached"

Uploading Documents After Submission​

If you realise after submitting a response that you forgot to include a supporting document, or if you receive a newly completed laboratory report after submission, you can upload additional documents to a submitted response until the operator accepts it.

  1. Navigate to Data Requests → find the submitted request
  2. Click the request to open the detail view
  3. Scroll to the Documents section
  4. Click Add Document and upload as described above

Once the operator accepts the response, no further document uploads are possible. At that point, if a critical document needs to be added, contact the operator to discuss reopening the response.

What Operators Can Do With Your Evidence​

When the operator reviews your submission, they have full access to every document you have uploaded:

  • View — operators can open and read documents directly in the Traceable viewer
  • Download — operators can download documents to their own systems
  • Attach to the DPP — operators can select your documents to be formally attached to the DPP record, making them part of the publicly accessible or authority-accessible documentation package
  • Reference in field notes — operators can cite your document (by name and reference number) in DPP field notes, establishing the evidential link between a specific DPP data value and its source document
  • Share with verifiers — when a DPP is sent for third-party verification, the attached documents are shared with the assigned verifier

Your documents remain your property. You grant Traceable and the receiving operator a licence to use them for the specific purpose of DPP compliance. Your documents are not shared with other operators or third parties beyond the DPP verification workflow you are part of.