It’s noticeable in various FAIR-related work that the same comments and questions related to the original Principles are repeatedly referenced. Rather than do the same thing for FAIRsFAIRWP4 we will retain the baseline issues and comments in this document and refer back to them periodically to see if they’ve been addressed either by our own work or by others. This text seeks to consider the issues around the FAIR data Principles, particularly as they apply to the notion of a Trustworthy Digital Repository (TDR). Issues here must be answered (or at least acknowledged) for us to provide an aligned approach to FAIR-enabled Trustworthy Digital Repositories. We can progress without all of these questions being addressed, but clarifying them will ensure a better overall solution.