The specific work programmes on accounting for NDCs, and for financial resources provided and mobilised, should help provide guidance on what to measure and how to do so.13 Further, conducting technical expert reviews of GHG inventories and progress reports from all Parties should assist Parties to continuously improve their measurement and reporting over time. Previous work on this topic (Briner and Prag, 2013, Levin et al., Subsequent information is needed to regularly track progress towards NDCs.