Due to the importance of human and organisational performance on nuclear plant maintenance, the Committee on the Safety of Nuclear Installations (CSNI) Special Experts’ Group on Human and Organisational Factors (SEGHOF) hosted a workshop titled “Better Nuclear Plant Maintenance: Improving Human and Organisational Performance”. The workshop took place in Ottawa, Canada on 3-5 October 2005 and provided an international forum for staff from nuclear plants, research bodies, and regulators to discuss human and organisational challenges to maintenance, and initiatives to support effective performance.