This paper is based on a research project looking at the management of self-access language learning (SALL) from the perspective of the managers of self-access centres. It looks at the factors which influence the practice of seven managers of self-access language learning in tertiary institutions in Hong Kong. The discussion centres around five themes: how managers interpret key concepts within the field of learner autonomy and self-access learning, the managers' beliefs about self-access language learning and the factors which influenced them, the purpose of a self-access centre, and the factors which influence the implementation of self-access learning. Our conclusion is that managing self-access language learning is a complex process and unique to each context but there are underlying principles for effective management of SALL. We identify five of these principles.