The work of the task force focussed on the use of natural gas in transportation to facilitate and accelerate the commercialization of natural gas, including renewable methane, as a fuel for the road and marine sectors. Asociacion Iberica del Gas Natural para la Movilidad (GASNAM') provided preliminary inputs regarding maritime use of natural gas. This present report has built on those initial inputs with significant contributions by DNV GL’. The report summarizes findings to date on the main barriers to the use of natural gas in maritime transport to inform the Group of Experts on Gas on appropriate approaches to their removal.