This document discusses the ongoing transition to open access academic publishing. It provides background on policies promoting open access in the UK and US, and challenges that still remain. Key points include: funder policies now strongly support open access but enforcement has been limited; publishers' resistance stems from threats to their profitable subscription-based model; and academics remain confused about open access and reluctant to change due to concerns over impacts on scientific societies and humanities research. Overall open access is increasing but progress has been slow due to ongoing issues around costs, compliance, innovation, and international coordination.