Introduction: Background and rationale. The arts and health sector in Australia has been growing steadily for the past 16 years from roots in community cultural development. Drawing from significant developments in the UK, particularly the expansion of arts on prescription programs to social prescribing, this period was marked by the slow development of social infrastructure that enabled practitioners, supporters and interested researchers to find each other and begin to articulate the forms and the benefits of their practice. While the sector has made notable achievements, including the formation of Arts Health Networks and creation of Framework policies, challenges remain for sector sustainability. Objectives. In this presentation we aim to set out key issues for consideration to support arts and health as a critical sector for social prescribing, into the future. Method: This presentation draws from observations and discussions across the arts and health sector in Australia in 2025, via the Arts Health Network NSW/ACT, the Arts Health Network Queensland, the Victorian Network for Creativity and Wellbeing, the Global Arts and Health Alliance, and connected practitioners. It reports particularly on the activities of the ‘Harnessing the Arts for Health and Care’ (‘HArts of Care’) node in the Sydney Policy Lab. Results: Many sector discussions focus on these areas: the unique contribution that Australia can make to arts and health globally through Indigenous leadership and knowledges; the continued articulation of practice, purpose and value, from practitioner expertises; the critical importance of sector- and community-centred methodologies in research and policy; and sustainability considerations for sector practice and infrastructure, including workforce. Discussion: We identify the central importance of justice in art and health work, and hence in policy development and workforce sustainability issues. We provide concrete recommendations for ‘justice-doing’ in sector development practice.