For our specialist paediatric workforce to be suitably equipped to deal with current childhood morbidity, a high level of competence in developmental-behavioural paediatrics (DBP) is necessary. New models of training and assessment are required to meet this challenge. An evolution of training in DBP, built around the centrepiece of competency-based medical education, is proposed. Summative assessment based upon entrustable professional activities, and a menu of formative workplace-based assessments specific to the DBP context are key components. A pilot project to develop and implement these changes is recommended.