This white paper, presented at a Scottish Government reception, outlines a unified “Once for Scotland” strategy for delivering and evaluating the MSc Education for Sustainable Healthcare Alliance curriculum. It sets out a coherent national approach designed to support consistency, quality, and equity in how Sustainable Healthcare Education is taught and assessed across Scottish institutions. The paper emphasises shared standards, cross‑sector collaboration, and an evidence‑based pathway for embedding sustainability competencies throughout health‑professional education in Scotland. This white paper has been archived on Zenodo to ensure open access, long‑term preservation, and reliable citation through an assigned DOI. Zenodo is a CERN‑hosted, OpenAIRE‑supported repository that accepts research outputs of all kinds and maintains their discoverability over time