This paper has been prepared by UNEP-WCMC and the team developing the Data and Reporting Tool for MEAs (DaRT) in advance of the Bern III Conference of biodiversity-related conventions and other relevant conventions on implementation of the Kunming-Montreal Global Biodiversity Framework. The aims are twofold: a) to introduce the issues covered to those involved in preparation for the Bern III Conference (recognising that the paper may also have value in other related discussions); and b) to deliver a document, all or part of which could usefully inform discussion at the Bern III Conference (and potentially also inform other MEA meetings and processes). This paper has been prepared under the UNEP Environmental Treaties Programme – Realizing Synergies for Biodiversity, which is financially supported by Switzerland, EU and SIDA. Earlier drafts have benefitted from feedback from MEA secretariats. Further feedback to jerry.harrison@unep-wcmc.org on the value and content of this paper would be welcome, as would any observations on how the work could be developed further.