The first Data Managment Plan (DMP) of the Metrology Support for Carbon Capture and Utilisation (MetCCUS) project provides an outline of the project’s research data management plans. It is expected to evolve during the lifetime of the project with updates being made whenever significant changes arise, such as the generation of new data, changes in data access provisions or curation policies, attainment of tasks (e.g. datasets deposited in a repository, etc.), changes in relevant practices (e.g. new innovation potential, decision to file for a patent), and/or changes in the composition of the consortium. The first periodic and final DMPs are expected to include more detailed answers and to include information on the datasets produced in the project.