On 8 October, the SHARE 2.0 Community of Practice on Green and Sustainable Sport hosted a capacity-building session to introduce the Green Sport Manifesto. The EOC EU Office, as an active member of the Steering Group, presented the development of the Manifesto, which is based on the Sport sector playbook (2023). Furthermore, the presentation explained the objectives of the Manifesto and outlined the future commitments expected from signatories. Participants also learned about the process for signing the Manifesto, the next steps for engagement, and received communication tips for their implementation of the Manifesto. Additionally, a presentation by NOC Croatia, showcased their sustainability strategy, which was developed with support of the OCEAN project, focusing on reducing the organisation’s carbon footprint using the OCEAN Sport CO₂ Calculator. This example was praised as a model of good practice within the network and highlighted the Calculator as a useful resource for sports organisations.