The 2019 USENIX Conference on Operational Machine Learning seeks submissions in the form of short papers, presentations, and tutorials. OpML '19 will bring together systems and machine learning (ML) researchers and practitioners (data scientists, data engineers, system/IT administrators, and DevOps specialists) to focus on the final stage of deploying ML into production and managing its subsequent continuous lifecycle. View the complete call for more details. Papers and talk proposals are due by Wednesday, February 13, 2019. Tutorial proposals are due by Friday, March 1, 2019.