The Care Quality Commission regulates health, mental health and adults social care in England. This document describes the design of the periodic reviews and special reviews and studies the Commission plans to carry out in 2009/10. Section 1 outlines the key influences on the design and topics of the reviews. Section 2 summarises how the approach differs from previous regulators and describes how the performance of commissioners will be assessed through periodic reviews. Section 3 provides a timetable of key activities and milestones for 2009/11.