  In January 2020, a workshop was held at EMBL-EBI (Hinxton, UK) to discuss
data requirements for deposition and validation of cryoEM structures, with a
focus on single-particle analysis. The meeting was attended by 45 experts in
data processing, model building and refinement, validation, and archiving of
such structures. This report describes the workshop's motivation and history,
the topics discussed, and consensus recommendations resulting from the
workshop. Some challenges for future methods-development efforts in this area
are also highlighted, as is the implementation to date of some of the
recommendations.
