sentences:  Close ties exist within the Harrow family, with teacher and student exchanges, interviews for the international schools being held at Harrow School, and day-to-day co-operation between staff and management across the network.Two governors from Harrow School London are on the board of governors of Harrow International Schools and they regularly visit the schools.In 2006 Harrow International School gained accreditation from the Council of International Schools (CIS).