title: Change file: CoreTrustSeal Trustworthy Data Repositories Requirements: Extended Guidance 2017–2019 to 2020–2022
creators: CoreTrustSeal Standards and Certification Board
abstract: <p>This document supplements the CoreTrustSeal Trustworthy Data Repositories Requirements:Extended Guidance 2020-2022 (https://doi.org/10.5281/zenodo.3632533). It documents the changes made from the 2017-2019 version to the 2020-2022 version of the CoreTrustSeal Extended Guidance.</p>
  
  <p>Note that for reasons of readability, all updates to the text of the CoreTrustSeal Requirements included in the Extended Guidance were not tracked. A document tracking the changes from the CoreTrustSeal Requirements 2017-2019 to the 2020-2022 version is available at https://doi.org/10.5281/zenodo.3828622.</p>
  
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keywords: Certification CoreTrustSeal Trustworthy Data Repositories World Data System Data Seal of Approval