Data management activities for the ocean component of the Carbon Dioxide Information Analysis Center (CDIAC-Oceans) at Oak Ridge National Laboratory (ORNL) have recently stopped and this letter provides information on steps being taken to minimize the impact of this stoppage on the oceanographic community. Data, numerical data packages (NDPs), data synthesis product pages, and utilities (such as CO2SYS) at CDIAC-Oceans will continue to be accessible through ORNL until September 30, 2017 when the entire CDIAC will fully cease operations.