The 12th International Conference on Modelling in Industrial Maintenance and Reliability (MIMAR) will take place in Nottingham, UK from 4-6 July 2023. This event is the premier maintenance and reliability modelling conference in the UK and builds upon a very successful series of previous conferences. It is an excellent international forum for disseminating information on the state-of-the-art research, theories and practices in maintenance and reliability modelling and offers a platform for connecting researchers and practitioners from around the world. The submission deadlines for abstracts and the optional full paper for inclusion in the Conference Proceedings are listed below. All submissions are subject to rigorous review before an acceptance decision is made. We hope you can attend and we will provide a warm welcome in Nottingham in 2023. For further information on the conference, including instructions for authors, please visit the conference webpage: https://ima.org.uk/20581/12th-mimar/ The scope of the conference includes: • Engineering Economy and Cost Analysis • Life cycle/performance analysis • Maintenance and Reliability Modelling • Prognostics and Health Management • Reliability and Maintenance Engineering • Safety, Security and Risk Management • Spare Parts Supply Chain Management • Warranty Management and Data Analysis • Machine learning for reliability engineering and maintenance optimization Presentations are encouraged on the theory or application of maintenance and reliability for: • Autonomous Systems • Cyber-physical systems • Data Mining and Machine Learning • Decision Analysis and Methods • Human Factors • Information Processing and Engineering • Manufacturing Systems • Expert Elicitation • Operational Research • Production Planning and Control • Quality Control and Management • Resilience Engineering • Sustainability • Smart Technologies • Systems Modelling and Simulation Publication Conference Proceedings: authors are invited to submit their paper for publication in the proceedings. All submissions will be peer reviewed and accepted papers will appear in the conference proceedings. The conference proceedings will be indexed by DOI system. Special Issue: selected authors will be invited to submit an extended version of their papers to a potential Special Issue in Reliability Engineering and System Safety, guest edited by the conference chairs. Papers will be subject to the standard peer review processes of the journal. A paper submitted to the Special Issue cannot be the same as a paper published in the conference proceedings. Keynote Speakers Prof Phil Scarf, Cardiff University Prof David Coit, Rutgers school of Engineering