This paper highlights the gaps, inconsistencies and uncertainties in the current reporting framework, which was developed for both long-standing obligations and mitigation pledges for the period to 2020. The paper also identifies possible improvements in the UNFCCC reporting framework in the context of the post-2020 transparency framework and nationally determined contributions (NDCs) for the post-2020 period. Ce document met en evidence les lacunes, incoherences et incertitudes de l’actuel cadre de notification qui a ete elabore pour rendre compte a la fois des obligations de longue date des pays et de leurs engagements d’attenuation jusqu’en 2020. These reasons include understanding individual or collective commitments or pledges, tracking progress towards them, providing confidence in and enhancing accountability of quantified information measured and reported, and providing background information - including on the scope and ambition of national climate responses.