ICOMOS reported on its cooperation with the Sri Lankan authorities and international experts in the monitoring of three World Heritage cultural sites - Anuradhapura, Polonnaruwa and Sigiriya. The ICOMOS Representative indicated that, as the preliminary report made available to the Bureau emphasized, this experience in Sri Lanka should serve as an example for the methodology applied in the monitoring exercise, especially in its interdisciplinary and systematic data collection methods. He also reported on ICOMOS’ involvement in the monitoring of World Heritage sites in the United Kingdom. Reports on these activities will be presented to the Committee at its nineteenth session.