This booklet gathers 52 papers, either in the form of articles or posters, presented during the second edition of the Confiance.ai Days held in Saclay on October 4-6, 2022. Altogether they give a good snapshot of the research and development work done in the Confiance.ai program, an industrial and academic initiative of the national Grand Challenge on provable and certifiable AI, launched in support of the France 2030 strategy. Among these papers, a dozen are presented as « external contributions » that were selected by an ad-hoc committee following a call for papers. All other communications belonged to one of five so-called « villages » with physical implementation in the conference hall, distributing the work done in Confiance.ai into five topics : « End-to-end approach » ; « from Operational Design Domain to Data » ; « Explainability and Understanding» ; « Robustness and Monitoring » ; « Embedded AI ». After two years of activity, and complementing the Confiance.ai white paper, this document shows the diversity and the quality of the work done in the programme. Some important and up-to-date subjects are addressed, such as – only to name a few - out-of-distribution detection, adversarial robustness, semi- or self-supervised learning, explainability by design, verification and validation, embedded AI etc. We hope that you will enjoy reading parts of this document as much as we enjoyed preparing and attending the 2022 Confiance AI days.