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v2026.1714 entries · CC-BY 4.0
Dictionary termTrack EStablev2026.2

cOAlition S

An international consortium of research funders, launched in 2018 by Science Europe, that collectively implements Plan S and advocates for full and immediate open access to research publications.

ByCASRAI Editorial Board
· Last updated 21 May 2026

Examples

Worked examples

  • Is an instance

    A funder joins cOAlition S and aligns its OA mandate with Plan S principles within 18 months.

  • Is an instance

    An author uses the Journal Checker Tool to confirm a venue is compliant before submission.

Counter-examples

Looks similar, but isn't

  • Not an instance

    Claiming Plan S compliance without aligning institutional or funder policy to the ten principles.

  • Not an instance

    Joining cOAlition S in name only without implementing the rights-retention requirement.

Editorial commentary

cOAlition S was announced on 4 September 2018 by 11 European national funders and the European Commission. It has grown to include funders from outside Europe (notably the Howard Hughes Medical Institute) and major charitable funders (Wellcome Trust, Bill & Melinda Gates Foundation as observer). Members commit to aligning their open-access policies with the Plan S principles. The coalition is governed by a Coordinator (Johan Rooryck since 2021) and produces guidance on price transparency, rights retention, transformative arrangements and the Journal Checker Tool that authors use to test compliance.

References

  • coalition-s.org. Journal Checker Tool (journalcheckertool.org). Science Europe.

Also known as

Coalition S

Machine-readable encodings

Use in your systems

JATS XML <role> element
xml
<role vocab="credit"
      vocab-identifier="https://casrai.org/dictionary/"
      vocab-term="cOAlition S"
      vocab-term-identifier="https://casrai.org/dictionary/term/coalition-s" />
Schema.org DefinedTerm (JSON-LD)
json
{
  "@context": "https://schema.org",
  "@type": "DefinedTerm",
  "name": "cOAlition S",
  "identifier": "https://casrai.org/dictionary/term/coalition-s",
  "description": "An international consortium of research funders, launched in 2018 by Science Europe, that collectively implements Plan S and advocates for full and immediate open access to research publications.",
  "inDefinedTermSet": "https://casrai.org/dictionary/domain/knowledge-equity-diversity-global-south-inclusion/",
  "url": "https://casrai.org/dictionary/term/coalition-s",
  "sameAs": [
    "Coalition S"
  ],
  "license": "https://creativecommons.org/licenses/by/4.0/"
}

Adopted by research universities worldwide

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