> ## 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.

# Add feedstocks

> How suppliers can add feedstocks and submit them for third-party validation directly in the platform for BiCRS and Enhanced Weathering projects

Suppliers can add feedstocks and submit them for third-party validation directly in the platform.

<Info>
  Feedstock addition is currently supported for:

  * **BiCRS projects** using the [Biomass Feedstock Accounting module](https://registry.isometric.com/module/biomass-feedstock-accounting/1.2)
  * **Enhanced Weathering projects** using the [Rock and Mineral Feedstock Characterization module](https://registry.isometric.com/module/rock-and-mineral-feedstock-characterization/1.0)
</Info>

To add your feedstock, navigate to the [Certify dashboard](https://registry.isometric.com/account/certify) and select the project you want the feedstock to be validated for.

<Steps>
  <Step title="Add a draft feedstock">
    Select the feedstock tab on the left-hand side and click **Add feedstock**.
  </Step>

  <Step title="Select eligibility criteria (BiCRS only)">
    When creating a BiCRS feedstock, you will have to select eligibility criteria (ECs) relevant to your feedstock. ECs are laid out in the feedstock module for your protocol.

    <Tip>
      If you are unsure which criteria to select, the questionnaire option will guide you through selection.
    </Tip>
  </Step>

  <Step title="Upload supporting evidence">
    Depending on the criteria you have selected, you will be required to upload specific supporting evidence that will be used as part of the validation.

    For each new feedstock, you will be required to provide a feedstock appendix that will be added to your PDD. This will be surfaced as a requirement on this page.
  </Step>

  <Step title="Upload sample data (EW only)">
    For Enhanced Weathering projects, you will need to upload feedstock sample data.

    1. In the **Samples** tab, download the CSV template, specifying which measurement properties are required, conditionally required and optional to supply.
    2. Populate the template with your sample data and export it as a CSV.
       <Tip>You can download the data example to see what this data might look like.</Tip>
    3. Click **Add samples**, select your file, and click **Submit**.

    Uploaded samples will be displayed in a table, where you can inspect individual datapoints by clicking into each row.

    <Tip>
      You only have to submit required fields, including `supplier_reference_id`, `feedstock_type_id` (assigned by Isometric in the format `ftt_XXXXXXXXXXXXXXXX`) and `measurement_date`.
    </Tip>
  </Step>

  <Step title="Submit for review">
    After uploading your supporting evidence, you can submit it for review.

    Isometric will review your submission and, once confirmed, send it to the verifier for validation. The feedstock will be reviewed either during project validation, or in the next verification cycle.
  </Step>
</Steps>

## Product walkthrough

<Frame caption="A video walkthrough of the process of adding a new feedstock">
  <iframe src="https://www.loom.com/embed/c8b63971bf7a449b8d1a0e1ccd1238ce?sid=74be2505-fbdb-4c38-b9e9-9e955f391d89&hideEmbedTopBar=true" class="w-full aspect-video" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen />
</Frame>