DfE told us that its second Condition Data Collection programme (CDC2), which had covered around 40% of schools so far, allowed it to prioritise schools that had not responded to the asbestos survey. As a result, DfE remained unsighted on 4.4% of schools, which represents just under 1,000 schools. It said that surveyors visiting schools for CDC2 purposes in order to conduct a visual survey were also carrying out an asbestos assurance process. This involved checking that schools and responsible bodies have an asbestos register on site so that they are readily available if contractors come to do work, and that they have an asbestos management plan in place.37